FR73793E - Tireuse-agrandisseuse perfectionnée - Google Patents

Tireuse-agrandisseuse perfectionnée

Info

Publication number
FR73793E
FR73793E FR769044A FR769044A FR73793E FR 73793 E FR73793 E FR 73793E FR 769044 A FR769044 A FR 769044A FR 769044 A FR769044 A FR 769044A FR 73793 E FR73793 E FR 73793E
Authority
FR
France
Prior art keywords
enlarger
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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
FR769044A
Other languages
English (en)
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.)
INTERCONTINENTALE DE REALISATI
Original Assignee
INTERCONTINENTALE DE REALISATI
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 INTERCONTINENTALE DE REALISATI filed Critical INTERCONTINENTALE DE REALISATI
Priority to FR769044A priority Critical patent/FR73793E/fr
Application granted granted Critical
Publication of FR73793E publication Critical patent/FR73793E/fr
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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/18—Fire preventing or extinguishing
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2053—Intensity control of illuminating light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
FR769044A 1958-06-25 1958-06-25 Tireuse-agrandisseuse perfectionnée Expired FR73793E (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR769044A FR73793E (fr) 1958-06-25 1958-06-25 Tireuse-agrandisseuse perfectionnée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR769044A FR73793E (fr) 1958-06-25 1958-06-25 Tireuse-agrandisseuse perfectionnée

Publications (1)

Publication Number Publication Date
FR73793E true FR73793E (fr) 1960-09-05

Family

ID=8706848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR769044A Expired FR73793E (fr) 1958-06-25 1958-06-25 Tireuse-agrandisseuse perfectionnée

Country Status (1)

Country Link
FR (1) FR73793E (fr)

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