ADDING MACHINE ADAPTED TO BE HELD IN ONE HAND,申请号USD3507447-传众专利搜索

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发明名称	ADDING MACHINE ADAPTED TO BE HELD IN ONE HAND
摘要
申请公布号	US3507447(A)	申请公布日期	1970.04.21
申请号	USD3507447	申请日期	1968.08.05
申请人	EDWARD C. WALSH	发明人	EDWARD C. WALSH
分类号	G06C1/00;(IPC1-7):G06C27/00;G06G1/00	主分类号	G06C1/00
代理机构		代理人
主权项
地址

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