METHOD AND APPARATUS FOR REDUCING REPETITIVE NOISE ENTERING THE EAR

Dispositif permettant d'ameliorer l'audibilite du son incident (4) par une personne (3) en activite dans un environnement dans lequel une source (1) de bruits repetitifs produit un champ (2) substantiel de bruits de fond. Ce dispositif comprend un generateur de formes d'ondes reglable...

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Hauptverfasser:	SMITH, RODERICK ALAN, BRAMER, TERRENCE PATRICK CONWAY, CHAPLIN, GEORGE BRIAN BARRIE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE MEDICAL OR VETERINARY SCIENCE METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PHYSICS PROSTHESES SOUND-PRODUCING DEVICES TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR TREATMENT OR PROTECTION OF EYES OR EARS
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