VACUUM TUBE CIRCUIT,申请号CAD450443-传众专利搜索

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发明名称	VACUUM TUBE CIRCUIT
摘要
申请公布号	CA450443(A)	申请公布日期	1948.08.10
申请号	CAD450443	申请日期
申请人	PHILCO CORPORATION	发明人	RENOLDS D. BROWN, JR.
分类号		主分类号
代理机构		代理人
主权项
地址

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