Electric heating pad,申请号US19380239078-传众专利搜索

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发明名称	Electric heating pad
摘要
申请公布号	US2162287(A)	申请公布日期	1939.06.13
申请号	US19380239078	申请日期	1938.11.05
申请人	SMITH WILLIAM W	发明人	SMITH WILLIAM W.
分类号	H05B3/34	主分类号	H05B3/34
代理机构		代理人
主权项
地址

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