Hardness tester work piece clamping means,申请号US19550525295-传众专利搜索

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发明名称	Hardness tester work piece clamping means
摘要
申请公布号	US2804769(A)	申请公布日期	1957.09.03
申请号	US19550525295	申请日期	1955.07.29
申请人	CLARK INSTRUMENT COMPANY	发明人	SR. CLYDE W. CLARK,
分类号	G01N3/42	主分类号	G01N3/42
代理机构		代理人
主权项
地址

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