Lens grinding means,申请号US19580737321-传众专利搜索

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发明名称	Lens grinding means
摘要
申请公布号	US2938307(A)	申请公布日期	1960.05.31
申请号	US19580737321	申请日期	1958.05.23
申请人	BELL & HOWELL COMPANY	发明人	HUTCHINGS ROBERT A.;SCHWICHTENBERG HOWARD J.;BUBLEY HENRY J.
分类号	B24B13/02	主分类号	B24B13/02
代理机构		代理人
主权项
地址

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