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发明名称
Electrical contact device
摘要
申请公布号
US2647975(A)
申请公布日期
1953.08.04
申请号
US19510262432
申请日期
1951.12.19
申请人
JACK
发明人
JACK WILLIAM R.;CAHILL LYSLE D.
分类号
H01C1/125
主分类号
H01C1/125
代理机构
代理人
主权项
地址
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