Heater with draft control,申请号US19280310935-传众专利搜索

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发明名称	Heater with draft control
摘要
申请公布号	US1772469(A)	申请公布日期	1930.08.12
申请号	US19280310935	申请日期	1928.10.08
申请人	SMITH JOSEPH B	发明人	SMITH JOSEPH B.
分类号	A01K31/20	主分类号	A01K31/20
代理机构		代理人
主权项
地址

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