Index safety device,申请号US19370147766-传众专利搜索

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发明名称	Index safety device
摘要
申请公布号	US2131233(A)	申请公布日期	1938.09.27
申请号	US19370147766	申请日期	1937.06.11
申请人	LANDIS TOOL COMPANY	发明人	OTT CONRAD L.;PRICE RALPH E.
分类号	B24B5/42	主分类号	B24B5/42
代理机构		代理人
主权项
地址

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