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发明名称
Ball bearing retainer
摘要
申请公布号
US2239629(A)
申请公布日期
1941.04.22
申请号
US19380215080
申请日期
1938.06.22
申请人
SIEVERT
发明人
SIEVERT CARL A.;FREUNDT GERHARD L.;HEINICHEN LUTHER H.
分类号
F16C33/78
主分类号
F16C33/78
代理机构
代理人
主权项
地址
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