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发明名称
Mechanical element and bearing therefor
摘要
申请公布号
US1978977(A)
申请公布日期
1934.10.30
申请号
US19320604772
申请日期
1932.04.12
申请人
ZERK OSCAR U
发明人
ZERK OSCAR U.
分类号
F16C11/04;F16C32/02
主分类号
F16C11/04
代理机构
代理人
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