FR521459A - Improvements made to the reproduction of drawings and photographs - Google Patents

Improvements made to the reproduction of drawings and photographs

Info

Publication number
FR521459A
FR521459A FR521459A FR521459DA FR521459A FR 521459 A FR521459 A FR 521459A FR 521459 A FR521459 A FR 521459A FR 521459D A FR521459D A FR 521459DA FR 521459 A FR521459 A FR 521459A
Authority
FR
France
Prior art keywords
photographs
reproduction
drawings
improvements made
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
FR521459A
Other languages
French (fr)
Inventor
Leon-Albert Charbonneau
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.)
LEON-ALBERT CHARBONNEAU
Original Assignee
LEON-ALBERT CHARBONNEAU
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 LEON-ALBERT CHARBONNEAU filed Critical LEON-ALBERT CHARBONNEAU
Application granted granted Critical
Publication of FR521459A publication Critical patent/FR521459A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting
    • G03C5/10—Reflex-printing; Photoprinting using fluorescent or phosphorescent means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR521459A 1918-02-02 1918-02-02 Improvements made to the reproduction of drawings and photographs Expired FR521459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR521459T 1918-02-02

Publications (1)

Publication Number Publication Date
FR521459A true FR521459A (en) 1921-07-15

Family

ID=8566563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR521459A Expired FR521459A (en) 1918-02-02 1918-02-02 Improvements made to the reproduction of drawings and photographs

Country Status (1)

Country Link
FR (1) FR521459A (en)

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