发明名称 COMMUNICATION CABLE WIRING STRUCTURE OF SUBTERRANEAN DUCT, AND GUIDE PIPE USED FOR THE SAME
摘要 <p><P>PROBLEM TO BE SOLVED: To enable stable and reliable communication by enabling an ideal communication infrastructure to be built. <P>SOLUTION: A trunk communication cable 11 is passed within a main pipe 2 provided with a manhole 4 and a branch pipe 3. Within the manhole 4, a part of the trunk communication cable 11 is separated as a branch communication cable 12, and the branch communication cable 12 is wired to a connection object from the branch pipe 3. <P>COPYRIGHT: (C)2004,JPO</p>
申请公布号 JP2003299235(A) 申请公布日期 2003.10.17
申请号 JP20020100799 申请日期 2002.04.03
申请人 SANKI ENG CO LTD;ASHIMORI IND CO LTD;ASHIMORI ENGINEERING CO LTD 发明人 TSUCHIYA FUMIAKI;YAGI ISABURO;ASO KOJI
分类号 E03F3/04;F16L9/12;F16L9/19;G02B6/46;H02G1/06;H02G9/06;(IPC1-7):H02G9/06 主分类号 E03F3/04
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