Heat-elimination screen for projector systems,申请号US19260153314-传众专利搜索

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发明名称	Heat-elimination screen for projector systems
摘要
申请公布号	US1750197(A)	申请公布日期	1930.03.11
申请号	US19260153314	申请日期	1926.12.08
申请人	EASTMAN KODAK COMPANY	发明人	SCHOEN ARTHUR L.
分类号	G03B21/18	主分类号	G03B21/18
代理机构		代理人
主权项
地址

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