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发明名称
Supervised electric system
摘要
申请公布号
US2074261(A)
申请公布日期
1937.03.16
申请号
US19320640602
申请日期
1932.11.01
申请人
WALTER KIDDE & COMPANY, INC.
发明人
JR. HARRY CAMPBELL GRANT,
分类号
H02J7/04
主分类号
H02J7/04
代理机构
代理人
主权项
地址
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