Means for indicating and/or recording unknown quantities,申请号US19350035151-传众专利搜索

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发明名称	Means for indicating and/or recording unknown quantities
摘要
申请公布号	US2109776(A)	申请公布日期	1938.03.01
申请号	US19350035151	申请日期	1935.08.07
申请人	THE LEWIS ENGINEERING COMPANY	发明人	JOHNSON MANFRED J.
分类号	H05B1/02	主分类号	H05B1/02
代理机构		代理人
主权项
地址

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