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发明名称
Automatic switch control
摘要
申请公布号
US1796953(A)
申请公布日期
1931.03.17
申请号
US19290335617
申请日期
1929.01.28
申请人
UNION OIL COMPANY OF CALIFORNIA
发明人
MARTIN HARRY W.
分类号
H01H35/10
主分类号
H01H35/10
代理机构
代理人
主权项
地址
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