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发明名称
Coupling device
摘要
申请公布号
US1857420(A)
申请公布日期
1932.05.10
申请号
US19300480737
申请日期
1930.09.09
申请人
WARREN WOLFORD EDGAR
发明人
WOLFORD EDGAR WARREN
分类号
F16L37/252
主分类号
F16L37/252
代理机构
代理人
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