GB195377A - - Google Patents

Info

Publication number
GB195377A
GB195377A GB7847/23A GB784723A GB195377A GB 195377 A GB195377 A GB 195377A GB 7847/23 A GB7847/23 A GB 7847/23A GB 784723 A GB784723 A GB 784723A GB 195377 A GB195377 A GB 195377A
Authority
GB
United Kingdom
Prior art keywords
printing
negative
frame
edges
recess
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
GB7847/23A
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.)
PRINTEX PROCESS Corp
Original Assignee
PRINTEX PROCESS Corp
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 PRINTEX PROCESS Corp filed Critical PRINTEX PROCESS Corp
Publication of GB195377A publication Critical patent/GB195377A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
    • G03B27/20—Maintaining or producing contact pressure between original and light-sensitive material by using a vacuum or fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
GB7847/23A 1922-03-25 1923-03-19 Expired GB195377A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US195377TA 1922-03-25 1922-03-25

Publications (1)

Publication Number Publication Date
GB195377A true GB195377A (enrdf_load_stackoverflow) 1924-02-07

Family

ID=31945446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7847/23A Expired GB195377A (enrdf_load_stackoverflow) 1922-03-25 1923-03-19

Country Status (1)

Country Link
GB (1) GB195377A (enrdf_load_stackoverflow)

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