Electrical heating device,申请号US19310523299-传众专利搜索

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发明名称	Electrical heating device
摘要
申请公布号	US1971387(A)	申请公布日期	1934.08.28
申请号	US19310523299	申请日期	1931.03.17
申请人	SCOVILLE FRANK E	发明人	SCOVILLE FRANK E.
分类号	F24H9/18	主分类号	F24H9/18
代理机构		代理人
主权项
地址

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