Instruction card holder,申请号US19320643934-传众专利搜索

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发明名称	Instruction card holder
摘要
申请公布号	US1935737(A)	申请公布日期	1933.11.21
申请号	US19320643934	申请日期	1932.11.22
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	CHRIST HENRY RUDOLPH
分类号	G09F1/12	主分类号	G09F1/12
代理机构		代理人
主权项
地址

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