Automatic electric switch control,申请号US19280245182-传众专利搜索

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发明名称	Automatic electric switch control
摘要
申请公布号	US1902263(A)	申请公布日期	1933.03.21
申请号	US19280245182	申请日期	1928.01.07
申请人	CHEATHAM ELECTRIC SWITCHING DEVICE COMPANY	发明人	RICHTERKESSING FRANK H.
分类号	B61L11/00	主分类号	B61L11/00
代理机构		代理人
主权项
地址

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