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摘要
申请公布号
US2242769(A)
申请公布日期
1941.05.20
申请号
US19380190888
申请日期
1938.02.17
申请人
GENERAL MOTORS CORPORATION
发明人
WERNER CALVIN J.
分类号
H01H61/00
主分类号
H01H61/00
代理机构
代理人
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