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发明名称
Phase failure and phase reverse protective device for polyphase alternating current circuits
摘要
申请公布号
US1826099(A)
申请公布日期
1931.10.06
申请号
US19280286262
申请日期
1928.06.18
申请人
CUTLER-HAMMER, INC.
发明人
STEVENS WILLIAM C.
分类号
H02H11/00
主分类号
H02H11/00
代理机构
代理人
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地址
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