RADIO FILTER CIRCUITS EMPLOYING PIEZO-ELECTRIC CRYSTALS,申请号CAD446264-传众专利搜索

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发明名称	RADIO FILTER CIRCUITS EMPLOYING PIEZO-ELECTRIC CRYSTALS
摘要
申请公布号	CA446264(A)	申请公布日期	1948.01.20
申请号	CAD446264	申请日期
申请人	CANADIAN MARCONI COMPANY	发明人	ARTHUR TISSO STARR
分类号		主分类号
代理机构		代理人
主权项
地址

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