AT335537B - DEVICE FOR ROLLING UP AND UNROLLING A PROJECTION SCREEN - Google Patents

DEVICE FOR ROLLING UP AND UNROLLING A PROJECTION SCREEN

Info

Publication number
AT335537B
AT335537B AT579975A AT579975A AT335537B AT 335537 B AT335537 B AT 335537B AT 579975 A AT579975 A AT 579975A AT 579975 A AT579975 A AT 579975A AT 335537 B AT335537 B AT 335537B
Authority
AT
Austria
Prior art keywords
unrolling
rolling
projection screen
projection
screen
Prior art date
Application number
AT579975A
Other languages
German (de)
Other versions
ATA579975A (en
Original Assignee
Neckermann Versand Kgaa
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 by Neckermann Versand Kgaa filed Critical Neckermann Versand Kgaa
Publication of ATA579975A publication Critical patent/ATA579975A/en
Application granted granted Critical
Publication of AT335537B publication Critical patent/AT335537B/en

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)
  • Overhead Projectors And Projection Screens (AREA)
AT579975A 1975-01-17 1975-07-25 DEVICE FOR ROLLING UP AND UNROLLING A PROJECTION SCREEN AT335537B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7501295 1975-01-17

Publications (2)

Publication Number Publication Date
ATA579975A ATA579975A (en) 1976-07-15
AT335537B true AT335537B (en) 1977-03-10

Family

ID=6649712

Family Applications (1)

Application Number Title Priority Date Filing Date
AT579975A AT335537B (en) 1975-01-17 1975-07-25 DEVICE FOR ROLLING UP AND UNROLLING A PROJECTION SCREEN

Country Status (11)

Country Link
AT (1) AT335537B (en)
BE (1) BE832380A (en)
CH (1) CH595649A5 (en)
DD (1) DD121196A5 (en)
DK (1) DK350075A (en)
FR (1) FR2298122A1 (en)
GB (1) GB1467569A (en)
IT (1) IT7560414U1 (en)
LU (1) LU73134A1 (en)
NL (1) NL7600054A (en)
SE (1) SE7508721L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7707290U1 (en) * 1977-03-09 1977-06-30 Mechanische Weberei Gmbh, 4792 Bad Lippspringe LIGHT IMAGE PROJECTION WALL WITH SPEAKERS

Also Published As

Publication number Publication date
ATA579975A (en) 1976-07-15
FR2298122B1 (en) 1979-05-11
NL7600054A (en) 1976-07-20
FR2298122A1 (en) 1976-08-13
SE7508721L (en) 1976-07-19
LU73134A1 (en) 1976-03-02
CH595649A5 (en) 1978-02-15
DK350075A (en) 1976-07-18
BE832380A (en) 1975-12-01
IT7560414U1 (en) 1977-02-14
DD121196A5 (en) 1976-07-12
GB1467569A (en) 1977-03-16

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee