Apparatus for checking recesses in recessed head screws,申请号US19490103386-传众专利搜索

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法人/股东/高管

发明名称	Apparatus for checking recesses in recessed head screws
摘要
申请公布号	US2632955(A)	申请公布日期	1953.03.31
申请号	US19490103386	申请日期	1949.07.07
申请人	THE NATIONAL SCREW & MANUFACTURING COMPANY	发明人	SAMUELSON DAVID H.
分类号	G01B5/00	主分类号	G01B5/00
代理机构		代理人
主权项
地址

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