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发明名称
INTERNAL PIPE SELF-TRAVELLING APPARATUS
摘要
申请公布号
JPS627315(A)
申请公布日期
1987.01.14
申请号
JP19850143359
申请日期
1985.06.29
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
MORIMITSU TAKENORI;NOMURA YOSHIHIKO;YABUTA TETSUO;TSUJIMURA TAKESHI
分类号
H02G1/08
主分类号
H02G1/08
代理机构
代理人
主权项
地址
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