Spring testing device,申请号US19410388933-传众专利搜索

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发明名称	Spring testing device
摘要
申请公布号	US2340277(A)	申请公布日期	1944.01.25
申请号	US19410388933	申请日期	1941.04.17
申请人	STURTEVANT PAUL A	发明人	STURTEVANT PAUL A.
分类号	G01N3/00	主分类号	G01N3/00
代理机构		代理人
主权项
地址

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