SKYDDSKAPA FOR KOMPENSATIONSMIKROFONER, I SYNNERHET FOR LARMTELEFONER

A protective cover is especially for use for emergency telephone posts, in which a compensation microphone is used to elminiate environmental noise so far as possible. This action would be defeated by a normal type of enclosure not allowing sound to reach the microphone equally from both sides. The...

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1. Verfasser:	G R H E NEUMANN
Format:	Patent
Sprache:	swe
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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creator	G R H E NEUMANN
description	A protective cover is especially for use for emergency telephone posts, in which a compensation microphone is used to elminiate environmental noise so far as possible. This action would be defeated by a normal type of enclosure not allowing sound to reach the microphone equally from both sides. The cover is made in a water-repellant material, preferably tetrafluorethylene, to reduce adverse weather effects, with a closed upper wall (2) and sides and base (3, 4) with line for the admission of sound. The inner wall may be lined with sound absorbent material (7).
format	Patent
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This action would be defeated by a normal type of enclosure not allowing sound to reach the microphone equally from both sides. The cover is made in a water-repellant material, preferably tetrafluorethylene, to reduce adverse weather effects, with a closed upper wall (2) and sides and base (3, 4) with line for the admission of sound. The inner wall may be lined with sound absorbent material (7).</description><language>swe</language><subject>DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; PUBLIC ADDRESS SYSTEMS</subject><creationdate>1977</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19770919&DB=EPODOC&CC=SE&NR=396530B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76292</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19770919&DB=EPODOC&CC=SE&NR=396530B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>G R H E NEUMANN</creatorcontrib><title>SKYDDSKAPA FOR KOMPENSATIONSMIKROFONER, I SYNNERHET FOR LARMTELEFONER</title><description>A protective cover is especially for use for emergency telephone posts, in which a compensation microphone is used to elminiate environmental noise so far as possible. This action would be defeated by a normal type of enclosure not allowing sound to reach the microphone equally from both sides. The cover is made in a water-repellant material, preferably tetrafluorethylene, to reduce adverse weather effects, with a closed upper wall (2) and sides and base (3, 4) with line for the admission of sound. The inner wall may be lined with sound absorbent material (7).</description><subject>DEAF-AID SETS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</subject><subject>PUBLIC ADDRESS SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1977</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAN9o50cQn2dgxwVHDzD1Lw9vcNcPULdgzx9PcL9vX0DvJ38_dzDdJR8FQIjvQDsjxcQ8AKfRyDfENcfVzB0jwMrGmJOcWpvFCam0HOzTXE2UM3tSA_PrW4IDE5NS-1JD7Y1djSzNTYwMmYoAIAzIYrcw</recordid><startdate>19770919</startdate><enddate>19770919</enddate><creator>G R H E NEUMANN</creator><scope>EVB</scope></search><sort><creationdate>19770919</creationdate><title>SKYDDSKAPA FOR KOMPENSATIONSMIKROFONER, I SYNNERHET FOR LARMTELEFONER</title><author>G R H E NEUMANN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_SE396530B3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>swe</language><creationdate>1977</creationdate><topic>DEAF-AID SETS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</topic><topic>PUBLIC ADDRESS SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>G R H E NEUMANN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>G R H E NEUMANN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SKYDDSKAPA FOR KOMPENSATIONSMIKROFONER, I SYNNERHET FOR LARMTELEFONER</title><date>1977-09-19</date><risdate>1977</risdate><abstract>A protective cover is especially for use for emergency telephone posts, in which a compensation microphone is used to elminiate environmental noise so far as possible. This action would be defeated by a normal type of enclosure not allowing sound to reach the microphone equally from both sides. The cover is made in a water-repellant material, preferably tetrafluorethylene, to reduce adverse weather effects, with a closed upper wall (2) and sides and base (3, 4) with line for the admission of sound. The inner wall may be lined with sound absorbent material (7).</abstract><oa>free_for_read</oa></addata></record>
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subjects	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
title	SKYDDSKAPA FOR KOMPENSATIONSMIKROFONER, I SYNNERHET FOR LARMTELEFONER
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