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经营范围
发明名称
Improvements relating to ball bearings
摘要
申请公布号
GB344995(A)
申请公布日期
1931.03.19
申请号
GB19300001090
申请日期
1930.01.11
申请人
DAVID HARCOURT LIMITED;ALFRED JOHN MANN;RHODES CHAINS LIMITED;BENJAMIN DONALD HUGHES
发明人
分类号
F16C19/18;F16C25/06
主分类号
F16C19/18
代理机构
代理人
主权项
地址
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