écran pour projection,申请号FRD1131048-传众专利搜索

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发明名称	écran pour projection
摘要
申请公布号	FR1131048(A)	申请公布日期	1957.02.14
申请号	FRD1131048	申请日期	1955.09.20
申请人		发明人	GOODBAR ISAAC;GOODBAR
分类号	G03B21/62	主分类号	G03B21/62
代理机构		代理人
主权项
地址

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