FR983481A - Lecteur de microfilm - Google Patents

Lecteur de microfilm

Info

Publication number
FR983481A
FR983481A FR983481DA FR983481A FR 983481 A FR983481 A FR 983481A FR 983481D A FR983481D A FR 983481DA FR 983481 A FR983481 A FR 983481A
Authority
FR
France
Prior art keywords
microfilm reader
microfilm
reader
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
English (en)
Inventor
Omer-Auguste Tournay
Paul Meningand
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 FR983481A publication Critical patent/FR983481A/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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR983481D 1949-01-31 1949-01-31 Lecteur de microfilm Expired FR983481A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR983481T 1949-01-31

Publications (1)

Publication Number Publication Date
FR983481A true FR983481A (fr) 1951-06-25

Family

ID=9536074

Family Applications (1)

Application Number Title Priority Date Filing Date
FR983481D Expired FR983481A (fr) 1949-01-31 1949-01-31 Lecteur de microfilm

Country Status (1)

Country Link
FR (1) FR983481A (fr)

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