Electrical measuring system,申请号US19390299279-传众专利搜索

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发明名称	Electrical measuring system
摘要
申请公布号	US2267551(A)	申请公布日期	1941.12.23
申请号	US19390299279	申请日期	1939.10.13
申请人	LEEDS & NORTHRUP COMPANY	发明人	CHERRY ROBERT H.
分类号	G01N27/48	主分类号	G01N27/48
代理机构		代理人
主权项
地址

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