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发明名称
Improvements in bearings
摘要
申请公布号
GB505915(A)
申请公布日期
1939.05.19
申请号
GB19370031833
申请日期
1937.11.19
申请人
JOSEF VOLMAN
发明人
分类号
B23B47/04;F16C17/22
主分类号
B23B47/04
代理机构
代理人
主权项
地址
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