PHOTOGRAPHIC SCREEN AND SAFELIGHT,申请号CAD417973-传众专利搜索

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发明名称	PHOTOGRAPHIC SCREEN AND SAFELIGHT
摘要
申请公布号	CA417973(A)	申请公布日期	1944.01.25
申请号	CAD417973	申请日期
申请人	CANADIAN KODAK COMPANY	发明人	DONALD E. KERN;WALTER J. WEYERTS
分类号		主分类号
代理机构		代理人
主权项
地址

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