FR677799A - Improvements to photographic magnifiers - Google Patents

Improvements to photographic magnifiers

Info

Publication number
FR677799A
FR677799A FR677799DA FR677799A FR 677799 A FR677799 A FR 677799A FR 677799D A FR677799D A FR 677799DA FR 677799 A FR677799 A FR 677799A
Authority
FR
France
Prior art keywords
magnifiers
photographic
photographic magnifiers
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.)
USINES PEARSON
Original Assignee
USINES PEARSON
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 USINES PEARSON filed Critical USINES PEARSON
Application granted granted Critical
Publication of FR677799A publication Critical patent/FR677799A/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
    • G03B27/326—Enlargers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR677799D 1929-07-03 1929-07-03 Improvements to photographic magnifiers Expired FR677799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR677799T 1929-07-03

Publications (1)

Publication Number Publication Date
FR677799A true FR677799A (en) 1930-03-14

Family

ID=9020674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR677799D Expired FR677799A (en) 1929-07-03 1929-07-03 Improvements to photographic magnifiers

Country Status (1)

Country Link
FR (1) FR677799A (en)

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