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Device for comparing at least partially a graphical representation on a medium with at least one other apparently similar graphical representation
Device for comparing at least partially a graphical representation on a medium with at least one other apparently similar graphical representation
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机译：用于至少部分地将介质上的图形表示与至少一个其他明显相似的图形表示进行比较的装置
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摘要
The invention relates to a device for comparing at least partially a graphical representation on a medium with at least one other apparently similar graphical representation and for example a postage stamp, a "rubber" stamp or a bank note. The device comprises means 9 for holding the medium 10 flat and is characterised in that it furthermore comprises a transparent disc 2 which is graduated on the surface with at least one set of equidistant parallel lines and in that the disc 2 can move at least in rotation on the surface of the medium in the plane which it defines. Application to the measurement apparatus industry. IMAGE
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