FR452767A - Improvements to photographic frames - Google Patents

Improvements to photographic frames

Info

Publication number
FR452767A
FR452767A FR452767DA FR452767A FR 452767 A FR452767 A FR 452767A FR 452767D A FR452767D A FR 452767DA FR 452767 A FR452767 A FR 452767A
Authority
FR
France
Prior art keywords
photographic frames
photographic
frames
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
William Stewart Thomson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR452767A publication Critical patent/FR452767A/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
    • G03B27/28—Edge-masking devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR452767D 1912-12-31 1912-12-31 Improvements to photographic frames Expired FR452767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR452767T 1912-12-31

Publications (1)

Publication Number Publication Date
FR452767A true FR452767A (en) 1913-05-23

Family

ID=1492946

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452767D Expired FR452767A (en) 1912-12-31 1912-12-31 Improvements to photographic frames

Country Status (1)

Country Link
FR (1) FR452767A (en)

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