Vernier for reading graduated circles,申请号US19300440427-传众专利搜索

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发明名称	Vernier for reading graduated circles
摘要
申请公布号	US1864896(A)	申请公布日期	1932.06.28
申请号	US19300440427	申请日期	1930.03.31
申请人	W. & L. E. GURLEY	发明人	EGY WILLARD L.
分类号	G01C1/06	主分类号	G01C1/06
代理机构		代理人
主权项
地址

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