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经营范围
发明名称
Polarized relay
摘要
申请公布号
US2437726(A)
申请公布日期
1948.03.16
申请号
US19440550098
申请日期
1944.08.18
申请人
DAVIS ARTHUR C
发明人
DAVIS ARTHUR C.
分类号
H01H51/22
主分类号
H01H51/22
代理机构
代理人
主权项
地址
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