FR946861A - Method and devices for enlarging photographic negatives - Google Patents

Method and devices for enlarging photographic negatives

Info

Publication number
FR946861A
FR946861A FR946861DA FR946861A FR 946861 A FR946861 A FR 946861A FR 946861D A FR946861D A FR 946861DA FR 946861 A FR946861 A FR 946861A
Authority
FR
France
Prior art keywords
devices
photographic negatives
enlarging
enlarging photographic
negatives
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
Joseph Dworkin
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 FR946861A publication Critical patent/FR946861A/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
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
FR946861D 1946-05-17 1947-05-16 Method and devices for enlarging photographic negatives Expired FR946861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE946861X 1946-05-17

Publications (1)

Publication Number Publication Date
FR946861A true FR946861A (en) 1949-06-16

Family

ID=3888658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR946861D Expired FR946861A (en) 1946-05-17 1947-05-16 Method and devices for enlarging photographic negatives

Country Status (1)

Country Link
FR (1) FR946861A (en)

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