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发明名称
Collapsible antifriction nut
摘要
申请公布号
US2321442(A)
申请公布日期
1943.06.08
申请号
US19410422463
申请日期
1941.12.10
申请人
THE THOMPSON GRINDER CO.
发明人
WILSON JOHN C.
分类号
F16H25/20;F16H25/24
主分类号
F16H25/20
代理机构
代理人
主权项
地址
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