Typewriting and calculating machine,申请号US19310534925-传众专利搜索

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发明名称	Typewriting and calculating machine
摘要
申请公布号	US1899936(A)	申请公布日期	1933.03.07
申请号	US19310534925	申请日期	1931.05.04
申请人	MONROE CALCULATING MACHINE COMPANY	发明人	BEAVER JOHN GEORGE
分类号		主分类号
代理机构		代理人
主权项
地址

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