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发明名称
BEARING
摘要
申请公布号
CA380657(A)
申请公布日期
1939.04.11
申请号
CAD380657
申请日期
申请人
FERRANTI LIMITED
发明人
MAURICE WHITEHEAD;GWILYM JONES
分类号
主分类号
代理机构
代理人
主权项
地址
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