Helical ribbon spring measuring apparatus,申请号US19360118411-传众专利搜索

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发明名称	Helical ribbon spring measuring apparatus
摘要
申请公布号	US2131739(A)	申请公布日期	1938.10.04
申请号	US19360118411	申请日期	1936.12.30
申请人	GULF RESEARCH & DEVELOPMENT COMPANY	发明人	HOYT ARCHER
分类号	G01V7/08	主分类号	G01V7/08
代理机构		代理人
主权项
地址

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