Helical variable resistors,申请号US19530345440-传众专利搜索

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发明名称	Helical variable resistors
摘要
申请公布号	US2813956(A)	申请公布日期	1957.11.19
申请号	US19530345440	申请日期	1953.03.30
申请人	PAUL SORBER GORDON	发明人	SORBER GORDON PAUL
分类号	H01C10/24	主分类号	H01C10/24
代理机构		代理人
主权项
地址

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