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FR870133A - Improvement device - Google Patents

Improvement device

Info

Publication number
FR870133A
FR870133A FR870133DA FR870133A FR 870133 A FR870133 A FR 870133A FR 870133D A FR870133D A FR 870133DA FR 870133 A FR870133 A FR 870133A
Authority
FR
France
Prior art keywords
improvement device
improvement
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Application granted granted Critical
Publication of FR870133A publication Critical patent/FR870133A/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)
FR870133D 1940-02-26 1941-02-18 Improvement device Expired FR870133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE870133X 1940-02-26

Publications (1)

Publication Number Publication Date
FR870133A true FR870133A (en) 1942-03-03

Family

ID=6804084

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870133D Expired FR870133A (en) 1940-02-26 1941-02-18 Improvement device

Country Status (1)

Country Link
FR (1) FR870133A (en)

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