Surface finish gauging device,申请号US19470781801-传众专利搜索

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发明名称	Surface finish gauging device
摘要
申请公布号	US2618965(A)	申请公布日期	1952.11.25
申请号	US19470781801	申请日期	1947.10.24
申请人	GRAY GENE W	发明人	GRAY GENE W.
分类号	G01B13/22	主分类号	G01B13/22
代理机构		代理人
主权项
地址

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