Off-peak water heating system,申请号US19410376579-传众专利搜索

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发明名称	Off-peak water heating system
摘要
申请公布号	US2266253(A)	申请公布日期	1941.12.16
申请号	US19410376579	申请日期	1941.01.30
申请人	MCGRAW ELECTRIC COMPANY	发明人	OSTERHELD CLARK M.
分类号	G05D23/275	主分类号	G05D23/275
代理机构		代理人
主权项
地址

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