Art of grinding annular surfaces,申请号US19440527745-传众专利搜索

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发明名称	Art of grinding annular surfaces
摘要
申请公布号	US2381418(A)	申请公布日期	1945.08.07
申请号	US19440527745	申请日期	1944.03.23
申请人	CORY GLASS COFFEE BREWER CO., NOT INC.	发明人	ALSDORF JAMES W.
分类号	B24B19/00	主分类号	B24B19/00
代理机构		代理人
主权项
地址

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