Rotary valve furnace,申请号US19290385133-传众专利搜索

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发明名称	Rotary valve furnace
摘要
申请公布号	US1809727(A)	申请公布日期	1931.06.09
申请号	US19290385133	申请日期	1929.08.12
申请人	GENERAL MOTORS CORPORATION	发明人	SANDERS WILBUR E.
分类号	B21J17/00	主分类号	B21J17/00
代理机构		代理人
主权项
地址

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