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发明名称
PIPES JOINT
摘要
申请公布号
RU1836599(C)
申请公布日期
1993.08.23
申请号
SU19884356984
申请日期
1988.11.29
申请人
ERNST NOK
发明人
ERNST NOK
分类号
F16L23/00
主分类号
F16L23/00
代理机构
代理人
主权项
地址
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