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发明名称	écrans de projection
摘要
申请公布号	FR1151997(A)	申请公布日期	1958.02.07
申请号	FRD1151997	申请日期	1956.06.29
申请人	ANDREW SMITH HARKNESS LIMITED	发明人
分类号	G03B21/60	主分类号	G03B21/60
代理机构		代理人
主权项
地址

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