FR1101995A - Portable viewer - Google Patents

Portable viewer

Info

Publication number
FR1101995A
FR1101995A FR1101995DA FR1101995A FR 1101995 A FR1101995 A FR 1101995A FR 1101995D A FR1101995D A FR 1101995DA FR 1101995 A FR1101995 A FR 1101995A
Authority
FR
France
Prior art keywords
portable viewer
viewer
portable
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
Andre-Jules Marcelin
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 FR1101995A publication Critical patent/FR1101995A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1101995D 1954-06-09 1954-06-09 Portable viewer Expired FR1101995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1101995T 1954-06-09

Publications (1)

Publication Number Publication Date
FR1101995A true FR1101995A (en) 1955-10-12

Family

ID=9621362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1101995D Expired FR1101995A (en) 1954-06-09 1954-06-09 Portable viewer

Country Status (1)

Country Link
FR (1) FR1101995A (en)

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