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发明名称
Method of forming bearings
摘要
申请公布号
US1753837(A)
申请公布日期
1930.04.08
申请号
US19260143490
申请日期
1926.10.22
申请人
CHARLES H. JOY, SR.
发明人
SAUER LOUIS J.;JR. CHARLES H. JOY,
分类号
B21K1/04
主分类号
B21K1/04
代理机构
代理人
主权项
地址
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