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发明名称
Time element control system and apparatus
摘要
申请公布号
US1813743(A)
申请公布日期
1931.07.07
申请号
US19240742729
申请日期
1924.10.09
申请人
GENERAL ELECTRIC COMPANY
发明人
HULL CLARENCE S.
分类号
H01H71/44
主分类号
H01H71/44
代理机构
代理人
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