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发明名称
BEARING FOR RELAYS
摘要
申请公布号
CA426027(A)
申请公布日期
1945.03.06
申请号
CAD426027
申请日期
申请人
WESTERN ELECTRIC COMPANY INCORPORATED;BELL TELEPHONE LABORATORIES INCORPORATED
发明人
HENRY CHARLES HARRISON
分类号
主分类号
代理机构
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