Способ сравнения частот,申请号SU19570579100-传众专利搜索

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发明名称	Способ сравнения частот
摘要
申请公布号	SU115422(A1)	申请公布日期	1957.11.30
申请号	SU19570579100	申请日期	1957.06.18
申请人	FYURSTENBERG A.I.	发明人	FYURSTENBERG A.I.
分类号	G01R23/00	主分类号	G01R23/00
代理机构		代理人
主权项
地址

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