A PROCESS FOR THE PRODUCTION OF NEGATIVE OR POSITIVE CONTINUOUS TONE OR SCREENED IMAGES THEREOF
1277213 Photographic processes AGFAGEVAERT A G 8 July 1969 [8 July 1968] 34384/69 Heading G2C Negative continuous-tone images or negative colour separation records are produced in a camera or by contact from a plurality of positive opaque or transparent black-and-white or coloured originals with dif...
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