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发明名称
Frictional device
摘要
申请公布号
US2249282(A)
申请公布日期
1941.07.15
申请号
US19410376098
申请日期
1941.01.27
申请人
THE S. K. WELLMAN COMPANY
发明人
WELLMAN SAMUEL K.
分类号
F16D13/64
主分类号
F16D13/64
代理机构
代理人
主权项
地址
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