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发明名称
EXTENSIBLE WALL PENETRATING METHOD OF PIPING
摘要
申请公布号
JPS585583(A)
申请公布日期
1983.01.12
申请号
JP19810101186
申请日期
1981.07.01
申请人
HITACHI SEISAKUSHO KK
发明人
HORIKAWA YORIAKI
分类号
F16L5/02;F16L5/00
主分类号
F16L5/02
代理机构
代理人
主权项
地址
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