Crystal grinding device,申请号US19440518914-传众专利搜索

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发明名称	Crystal grinding device
摘要
申请公布号	US2372688(A)	申请公布日期	1945.04.03
申请号	US19440518914	申请日期	1944.01.20
申请人	ANTHONY SPINA	发明人	SPINA ANTHONY
分类号	B24B37/04	主分类号	B24B37/04
代理机构		代理人
主权项
地址

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