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发明名称
Bearing
摘要
申请公布号
US1865100(A)
申请公布日期
1932.06.28
申请号
US19300454083
申请日期
1930.05.20
申请人
GRUVER PERRY F
发明人
GRUVER PERRY F.
分类号
F16C29/04
主分类号
F16C29/04
代理机构
代理人
主权项
地址
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