Dressing attachment for screw thread grinders,申请号US19320596786-传众专利搜索

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发明名称	Dressing attachment for screw thread grinders
摘要
申请公布号	US1886796(A)	申请公布日期	1932.11.08
申请号	US19320596786	申请日期	1932.03.04
申请人	PRATT & WHITNEY COMPANY	发明人	DRAKE ALDEN M.;CROWEY NORMAN J.
分类号	B24B53/08	主分类号	B24B53/08
代理机构		代理人
主权项
地址

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