Photographic background roller assembly,申请号US19620202001-传众专利搜索

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发明名称	Photographic background roller assembly
摘要
申请公布号	US3128688(A)	申请公布日期	1964.04.14
申请号	US19620202001	申请日期	1962.06.12
申请人	ALFRED CODA	发明人	CODA ALFRED
分类号	G03B15/06	主分类号	G03B15/06
代理机构		代理人
主权项
地址

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