FR865979A - Improvements in photographic enlargers - Google Patents

Improvements in photographic enlargers

Info

Publication number
FR865979A
FR865979A FR865979DA FR865979A FR 865979 A FR865979 A FR 865979A FR 865979D A FR865979D A FR 865979DA FR 865979 A FR865979 A FR 865979A
Authority
FR
France
Prior art keywords
photographic enlargers
enlargers
photographic
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)
Inventor
Alexandre Ilyenko
Marcel Wagenr
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 filed Critical
Application granted granted Critical
Publication of FR865979A publication Critical patent/FR865979A/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
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/34—Means for automatic focusing therefor
    • G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR865979D 1939-06-02 1940-06-01 Improvements in photographic enlargers Expired FR865979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB865979X 1939-06-02

Publications (1)

Publication Number Publication Date
FR865979A true FR865979A (en) 1941-06-11

Family

ID=10609999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR865979D Expired FR865979A (en) 1939-06-02 1940-06-01 Improvements in photographic enlargers

Country Status (1)

Country Link
FR (1) FR865979A (en)

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