Evaporated and deposited birefringent film comprising aromatic compound, the molecules of which contain planar groupings,申请号US19450580817-传众专利搜索

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发明名称	Evaporated and deposited birefringent film comprising aromatic compound, the molecules of which contain planar groupings
摘要
申请公布号	US2447831(A)	申请公布日期	1948.08.24
申请号	US19450580817	申请日期	1945.03.03
申请人	POLAROID CORPORATION	发明人	WOODWARD ROBERT B.
分类号	G02B5/30	主分类号	G02B5/30
代理机构		代理人
主权项
地址

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