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发明名称
Improvements in or relating to ball and roller bearings
摘要
申请公布号
GB660399(A)
申请公布日期
1951.11.07
申请号
GB19490008977
申请日期
1949.04.01
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
MACKROW NORMAN ATTON
分类号
F16C33/56
主分类号
F16C33/56
代理机构
代理人
主权项
地址
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