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发明名称
METHOD OF EXECUTING BRANCH PIPE IN METHOD OF PIPE-IN-PIPE CONSTRUCTION
摘要
申请公布号
JPS5989894(A)
申请公布日期
1984.05.24
申请号
JP19820198759
申请日期
1982.11.11
申请人
SUMITOMO KINZOKU KOGYO KK;SUMIKIN KOUKAN KOUJI KK
发明人
YOKOGAWA TOORU;IZUMIMOTO SHIYOUJI;TSURU MASAYUKI;MIYAMOTO TETSUO
分类号
F16L41/08;F16L1/00
主分类号
F16L41/08
代理机构
代理人
主权项
地址
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