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发明名称
Relay control system
摘要
申请公布号
US1838961(A)
申请公布日期
1931.12.29
申请号
US19280323292
申请日期
1928.12.03
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
ROBINSON HAROLD C.
分类号
H02J7/32
主分类号
H02J7/32
代理机构
代理人
主权项
地址
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