VARIABLE RESISTANCE CIRCUIT,申请号USD3446987-传众专利搜索

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发明名称	VARIABLE RESISTANCE CIRCUIT
摘要
申请公布号	US3446987(A)	申请公布日期	1969.05.27
申请号	USD3446987	申请日期	1966.11.04
申请人	YOKOGAWA HEWLETT PACKARD LTD.	发明人	HARUO ITO
分类号	H03F1/32;H03G1/00;H03H7/25;(IPC1-7):H03K17/74	主分类号	H03F1/32
代理机构		代理人
主权项
地址

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