BE409291A - - Google Patents

Info

Publication number
BE409291A
BE409291A BE409291DA BE409291A BE 409291 A BE409291 A BE 409291A BE 409291D A BE409291D A BE 409291DA BE 409291 A BE409291 A BE 409291A
Authority
BE
Belgium
Prior art keywords
film
reserve
light
container
daylight
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE409291A publication Critical patent/BE409291A/fr

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/54Accessories
    • G03B21/64Means for mounting individual pictures to be projected, e.g. frame for transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
BE409291D BE409291A (forum.php)

Publications (1)

Publication Number Publication Date
BE409291A true BE409291A (forum.php)

Family

ID=73708

Family Applications (1)

Application Number Title Priority Date Filing Date
BE409291D BE409291A (forum.php)

Country Status (1)

Country Link
BE (1) BE409291A (forum.php)

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