Perfectionnements apportés aux appareils pour la projection d'une image sur un écran, notamment en association avec des microscopes,申请号FRD990711-传众专利搜索

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发明名称	Perfectionnements apportés aux appareils pour la projection d'une image sur un écran, notamment en association avec des microscopes
摘要
申请公布号	FR990711(A)	申请公布日期	1951.09.25
申请号	FRD990711	申请日期	1944.03.30
申请人		发明人	GAUTHERET ROGER-JEAN
分类号	G02B21/36	主分类号	G02B21/36
代理机构		代理人
主权项
地址

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