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摘要
申请公布号
US1980457(A)
申请公布日期
1934.11.13
申请号
US19320639750
申请日期
1932.10.27
申请人
GENERAL MOTORS CORPORATION
发明人
WERNER CALVIN J.
分类号
H01H73/24
主分类号
H01H73/24
代理机构
代理人
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