Revoluble diaphragm for filmdisplaying apparatus,申请号US19430489414-传众专利搜索

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发明名称	Revoluble diaphragm for filmdisplaying apparatus
摘要
申请公布号	US2379129(A)	申请公布日期	1945.06.26
申请号	US19430489414	申请日期	1943.06.02
申请人	EMILE WURGER	发明人	WURGER EMILE
分类号	G03B9/10	主分类号	G03B9/10
代理机构		代理人
主权项
地址

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