Crystal filter circuit,申请号US19560626798-传众专利搜索

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法人/股东/高管

发明名称	Crystal filter circuit
摘要
申请公布号	US2868898(A)	申请公布日期	1959.01.13
申请号	US19560626798	申请日期	1956.11.29
申请人	INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION	发明人	PHANOS STEPHEN
分类号	H03H9/54	主分类号	H03H9/54
代理机构		代理人
主权项
地址

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