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经营范围
发明名称
Coupler
摘要
申请公布号
US1932436(A)
申请公布日期
1933.10.31
申请号
US19300427005
申请日期
1930.02.08
申请人
BARNHILL WILLIAM T
发明人
BARNHILL WILLIAM T.
分类号
F16B7/22
主分类号
F16B7/22
代理机构
代理人
主权项
地址
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