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发明名称
Relay system
摘要
申请公布号
US2113737(A)
申请公布日期
1938.04.12
申请号
US19350054032
申请日期
1935.12.12
申请人
G-M LABORATORIES, INC.
发明人
MCMASTER ARCHIE J.
分类号
H01H47/24
主分类号
H01H47/24
代理机构
代理人
主权项
地址
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