发明授权
US3948664A Polyethylene terephthalate film for use as support for radiographic film 失效
聚对苯二甲酸乙二醇酯薄膜用作射线照相胶片的支持

Polyethylene terephthalate film for use as support for radiographic film
摘要:
A colored polyetylene terephthalate film to be employed as the support in radiographic films, having incorporated therein certain specific anthraquinone dyes.
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