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发明名称
Springless electric push-button switch
摘要
申请公布号
US2523438(A)
申请公布日期
1950.09.26
申请号
US19480061020
申请日期
1948.11.19
申请人
MATHEIS NICKOLAS A
发明人
MATHEIS NICKOLAS A.
分类号
H01H13/20
主分类号
H01H13/20
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代理人
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