BE634307A - - Google Patents

Info

Publication number
BE634307A
BE634307A BE634307DA BE634307A BE 634307 A BE634307 A BE 634307A BE 634307D A BE634307D A BE 634307DA BE 634307 A BE634307 A BE 634307A
Authority
BE
Belgium
Prior art keywords
slats
bands
views
rings
tabs
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE634307A publication Critical patent/BE634307A/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)
  • Sheet Holders (AREA)
BE634307D BE634307A (de)

Publications (1)

Publication Number Publication Date
BE634307A true BE634307A (de)

Family

ID=201420

Family Applications (1)

Application Number Title Priority Date Filing Date
BE634307D BE634307A (de)

Country Status (1)

Country Link
BE (1) BE634307A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466126A (en) * 1965-04-28 1969-09-09 Yoshichika Sakamoto Slide-holding frame and a file plate for filing such frames
US5119574A (en) * 1990-12-14 1992-06-09 U.S. Sample Company Collector's album having transparent display pages with sheet retainers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466126A (en) * 1965-04-28 1969-09-09 Yoshichika Sakamoto Slide-holding frame and a file plate for filing such frames
US5119574A (en) * 1990-12-14 1992-06-09 U.S. Sample Company Collector's album having transparent display pages with sheet retainers

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