MASTER CONDUIT FOR COMMUNICATION CABLE PROTECTION SHEATH

PROBLEM TO BE SOLVED: To obtain a master conduit into which a cable protection sheath is inserted and pipe smoothly and in a short time and whose operability is enhanced sharply, by a method wherein a pipe wall is formed in an uneven wave shape and a plurality of stages of partition walls which are...

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1. Verfasser: FUKUI KOKI
Format: Patent
Sprache:eng
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