FR911714A - Perfectionnements apportés aux articles tels, notamment, que les mallettes, les mallettes écrans et aux articles analogues - Google Patents

Perfectionnements apportés aux articles tels, notamment, que les mallettes, les mallettes écrans et aux articles analogues

Info

Publication number
FR911714A
FR911714A FR911714DA FR911714A FR 911714 A FR911714 A FR 911714A FR 911714D A FR911714D A FR 911714DA FR 911714 A FR911714 A FR 911714A
Authority
FR
France
Prior art keywords
cases
articles
improvements made
screen
similar
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
Hoste Jean L
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 FR911714A publication Critical patent/FR911714A/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR911714D 1945-06-22 1945-06-22 Perfectionnements apportés aux articles tels, notamment, que les mallettes, les mallettes écrans et aux articles analogues Expired FR911714A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR911714T 1945-06-22

Publications (1)

Publication Number Publication Date
FR911714A true FR911714A (fr) 1946-07-18

Family

ID=9420852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR911714D Expired FR911714A (fr) 1945-06-22 1945-06-22 Perfectionnements apportés aux articles tels, notamment, que les mallettes, les mallettes écrans et aux articles analogues

Country Status (1)

Country Link
FR (1) FR911714A (fr)

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