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发明名称
Nylon roller bearing roller assembly
摘要
申请公布号
US2757054(A)
申请公布日期
1956.07.31
申请号
US19540460862
申请日期
1954.10.07
申请人
CRAWFORD DOOR COMPANY
发明人
WARKER MERLE M. VAN DE
分类号
B60B33/00;F16C33/62
主分类号
B60B33/00
代理机构
代理人
主权项
地址
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