SE7508721L - Anordning for upp- och nedrullning av projektionsduk - Google Patents

Anordning for upp- och nedrullning av projektionsduk

Info

Publication number: SE7508721L
Authority: SE; Sweden
Prior art keywords: rolling; projection screen; projection; screen
Prior art date: 1975-01-17

Application number

SE7508721A

Other languages

English (en)

Swedish (sv)

Inventor

W T Wiesner

Original Assignee

Neckerman 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.)

1975-01-17

Filing date

1975-08-01

Publication date

1976-07-19

1975-08-01 Application filed by Neckerman Versand Kgaa filed Critical Neckerman Versand Kgaa

1976-07-19 Publication of SE7508721L publication Critical patent/SE7508721L/xx

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)

SE7508721A 1975-01-17 1975-08-01 Anordning for upp- och nedrullning av projektionsduk SE7508721L (sv)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
SE7508721L true SE7508721L (sv)	1976-07-19

Family

ID=6649712

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7508721A SE7508721L (sv)	1975-01-17	1975-08-01	Anordning for upp- och nedrullning av projektionsduk

Country Status (10)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE7707290U1 (de) *	1977-03-09	1977-06-30	Mechanische Weberei Gmbh, 4792 Bad Lippspringe	Lichtbildprojektionswand mit lautsprechern

1975
- 1975-07-25 AT AT579975A patent/AT335537B/de not_active IP Right Cessation
- 1975-07-28 CH CH982975A patent/CH595649A5/xx not_active IP Right Cessation
- 1975-07-30 DD DD187572A patent/DD121196A5/xx unknown
- 1975-08-01 LU LU73134A patent/LU73134A1/xx unknown
- 1975-08-01 SE SE7508721A patent/SE7508721L/xx unknown
- 1975-08-01 DK DK350075A patent/DK350075A/da unknown
- 1975-08-07 FR FR7524611A patent/FR2298122A1/fr active Granted
- 1975-08-13 BE BE159156A patent/BE832380A/xx unknown
- 1975-08-18 GB GB3426775A patent/GB1467569A/en not_active Expired
1976
- 1976-01-05 NL NL7600054A patent/NL7600054A/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
ATA579975A (de)	1976-07-15
DK350075A (da)	1976-07-18
GB1467569A (en)	1977-03-16
LU73134A1 (es)	1976-03-02
DD121196A5 (es)	1976-07-12
CH595649A5 (es)	1978-02-15
NL7600054A (nl)	1976-07-20
FR2298122A1 (fr)	1976-08-13
AT335537B (de)	1977-03-10
BE832380A (fr)	1975-12-01
FR2298122B1 (es)	1979-05-11

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