Changing picture comprising one stationary and one sliding picture,申请号US19450622382-传众专利搜索

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法人/股东/高管

发明名称	Changing picture comprising one stationary and one sliding picture
摘要
申请公布号	US2485806(A)	申请公布日期	1949.10.25
申请号	US19450622382	申请日期	1945.10.15
申请人	MARTIN BERG	发明人	BERG MARTIN
分类号	B44F1/10	主分类号	B44F1/10
代理机构		代理人
主权项
地址

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