Improvements relating to cavity type frequency meters,申请号GB19540031328-传众专利搜索

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发明名称	Improvements relating to cavity type frequency meters
摘要
申请公布号	GB762924(A)	申请公布日期	1956.12.05
申请号	GB19540031328	申请日期	1954.10.29
申请人	THE SPERRY CORPORATION	发明人
分类号	G01R23/04	主分类号	G01R23/04
代理机构		代理人
主权项
地址

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