GB436457A
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US3776725A
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1973-12-04
Bi-stimulus print
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1972-07-18
Photographic printing apparatus
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1974-04-16
Methods of producing halftone positive films
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1975-12-23
Process for making multi-color intaglio plates and cylinders for use in gravure printing
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1951-12-11
Method of making color printing plates
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1939-07-11
Color correction
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1973-06-19
Method of making resists to be used in etching rotogravure cylinders for four color printing
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1969-01-07
Sizing and layout of autostereographic prints for graphic arts reproduction
EP0003631B1
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1981-12-16
Method, means and product of recording, reducing, enlarging and/or reproducing anamorphic images
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1955-01-25
Method of making intaglio engravings
GB506581A
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1941-05-30
Improvements in photographic and photomechanical colour printing
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1984-06-05
Colour reproduction process
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1906-07-31
Color photography.
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1960-03-01
Photographic process
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1968-11-26
Method of preparing printing plates
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1903-08-04
Method of making half-tone printing-surfaces.
Chang
1976
Projection of stereoscopic images by ordinary slide projector
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1936-07-28
Apparatus for the production of lens line-screen films for color photography
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1935-12-03
Photographic printing
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1969-01-07
Process for preparing a masked color separation positive utilizing an electrophotographic photoconductive copysheet
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1932-03-08
Color photography
GB447917A
(enExample )
1900-01-01
US2042895A
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1936-06-02
Color photography
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1935-11-12
Method of preparing films for reproduction in colors