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摘要
申请公布号
US2244836(A)
申请公布日期
1941.06.10
申请号
US19390273382
申请日期
1939.05.13
申请人
HUGO GROSS;POTENZA JACK A
发明人
GROSS HUGO;POTENZA JACK A.
分类号
H01H29/20;H01H73/24
主分类号
H01H29/20
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