Draft control and regulating device,申请号US19360102705-传众专利搜索

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发明名称	Draft control and regulating device
摘要
申请公布号	US2184399(A)	申请公布日期	1939.12.26
申请号	US19360102705	申请日期	1936.09.26
申请人	POWELL LYMAN S	发明人	POWELL LYMAN S.
分类号	F23N3/06	主分类号	F23N3/06
代理机构		代理人
主权项
地址

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