Ash disposal screw,申请号US19440556686-传众专利搜索

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发明名称	Ash disposal screw
摘要
申请公布号	US2533329(A)	申请公布日期	1950.12.12
申请号	US19440556686	申请日期	1944.10.02
申请人	IRON FIREMAN MANUFACTURING COMPANY	发明人	SCHWEICKART WILLIAM M.;JULYAN FRED G.
分类号	F23J1/00	主分类号	F23J1/00
代理机构		代理人
主权项
地址

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