GB401556A - Improvements in or relating to multi-colour printing processes employing half-tone negatives or positives - Google Patents

Improvements in or relating to multi-colour printing processes employing half-tone negatives or positives

Info

Publication number
GB401556A
GB401556A GB665733A GB665733A GB401556A GB 401556 A GB401556 A GB 401556A GB 665733 A GB665733 A GB 665733A GB 665733 A GB665733 A GB 665733A GB 401556 A GB401556 A GB 401556A
Authority
GB
United Kingdom
Prior art keywords
paper
light
sensitive
pictures
positives
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB665733A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB401556A publication Critical patent/GB401556A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F3/00—Colour separation; Correction of tonal value
    • G03F3/02—Colour separation; Correction of tonal value by retouching

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
GB665733A 1932-03-05 1933-03-04 Improvements in or relating to multi-colour printing processes employing half-tone negatives or positives Expired GB401556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0088418 1932-03-05

Publications (1)

Publication Number Publication Date
GB401556A true GB401556A (en) 1933-11-16

Family

ID=7612801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB665733A Expired GB401556A (en) 1932-03-05 1933-03-04 Improvements in or relating to multi-colour printing processes employing half-tone negatives or positives

Country Status (3)

Country Link
BE (1) BE394776A (enrdf_load_stackoverflow)
FR (1) FR751791A (enrdf_load_stackoverflow)
GB (1) GB401556A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR751791A (fr) 1933-09-09
BE394776A (enrdf_load_stackoverflow)

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