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经营范围
发明名称
Coupling
摘要
申请公布号
US1805580(A)
申请公布日期
1931.05.19
申请号
US19280302062
申请日期
1928.08.25
申请人
HAZLETT KENNETH C;HAZLETT CLARENCE W
发明人
HAZLETT KENNETH C.;HAZLETT CLARENCE W.
分类号
F16L37/252;F16L37/42
主分类号
F16L37/252
代理机构
代理人
主权项
地址
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