FR859364A - Blueprints machine - Google Patents

Blueprints machine

Info

Publication number
FR859364A
FR859364A FR859364DA FR859364A FR 859364 A FR859364 A FR 859364A FR 859364D A FR859364D A FR 859364DA FR 859364 A FR859364 A FR 859364A
Authority
FR
France
Prior art keywords
blueprints
machine
blueprints machine
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
Other languages
French (fr)
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.)
VERRERIE SCIENT
Original Assignee
VERRERIE SCIENT
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 VERRERIE SCIENT filed Critical VERRERIE SCIENT
Application granted granted Critical
Publication of FR859364A publication Critical patent/FR859364A/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
    • G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR859364D 1939-05-12 1939-05-12 Blueprints machine Expired FR859364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR859364T 1939-05-12

Publications (1)

Publication Number Publication Date
FR859364A true FR859364A (en) 1940-12-17

Family

ID=9330389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR859364D Expired FR859364A (en) 1939-05-12 1939-05-12 Blueprints machine

Country Status (1)

Country Link
FR (1) FR859364A (en)

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