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发明名称
Vibratory contact device
摘要
申请公布号
US2101902(A)
申请公布日期
1937.12.14
申请号
US19350038739
申请日期
1935.08.31
申请人
RADIO CORPORATION
发明人
GUEDON EMILE C.
分类号
H01H50/76
主分类号
H01H50/76
代理机构
代理人
主权项
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