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发明名称
Coupling
摘要
申请公布号
US2689138(A)
申请公布日期
1954.09.14
申请号
US19490100063
申请日期
1949.06.18
申请人
SCHEIWER ALBERT T
发明人
SCHEIWER ALBERT T.
分类号
F16L37/23;F16L37/30
主分类号
F16L37/23
代理机构
代理人
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地址
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