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发明名称
Coupling
摘要
申请公布号
US1900902(A)
申请公布日期
1933.03.14
申请号
US19310529001
申请日期
1931.04.10
申请人
BARKS FRANK S
发明人
BARKS FRANK S.
分类号
F16L37/248
主分类号
F16L37/248
代理机构
代理人
主权项
地址
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