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发明名称
Roller bearing
摘要
申请公布号
US2007194(A)
申请公布日期
1935.07.09
申请号
US19330693231
申请日期
1933.10.12
申请人
HERRMANN KARL L
发明人
HERRMANN KARL L.
分类号
F16C19/36
主分类号
F16C19/36
代理机构
代理人
主权项
地址
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