DK379080A - Indretning til understoetning af transparenter ved en oerhead--projektor - Google Patents
Indretning til understoetning af transparenter ved en oerhead--projektorInfo
- Publication number
- DK379080A DK379080A DK379080A DK379080A DK379080A DK 379080 A DK379080 A DK 379080A DK 379080 A DK379080 A DK 379080A DK 379080 A DK379080 A DK 379080A DK 379080 A DK379080 A DK 379080A
- Authority
- DK
- Denmark
- Prior art keywords
- transparents
- projector
- overhead
- supporting
- supporting transparents
- Prior art date
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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Projection Apparatus (AREA)
- Coin-Freed Apparatuses For Hiring Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7449079A | 1979-09-11 | 1979-09-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK379080A true DK379080A (da) | 1981-03-12 |
Family
ID=22119833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK379080A DK379080A (da) | 1979-09-11 | 1980-09-05 | Indretning til understoetning af transparenter ved en oerhead--projektor |
Country Status (8)
Country | Link |
---|---|
CA (1) | CA1125066A (da) |
CH (1) | CH647340A5 (da) |
DE (1) | DE3025927A1 (da) |
DK (1) | DK379080A (da) |
FR (1) | FR2465247A1 (da) |
GB (1) | GB2060193B (da) |
NL (1) | NL8005104A (da) |
SE (1) | SE445394B (da) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE439999B (sv) * | 1984-07-23 | 1985-07-08 | Nord Ab Ingfirma | Forfarande for presentation av information pa ett flertal arkformiga informationsberare samt anordning for genomforande av forfarandet |
DE4241860A1 (de) * | 1992-12-11 | 1994-06-16 | Geha Werke Gmbh | Wechseleinrichtung für die Projektion von Overhead-Folien und Klarsicht-Folientasche |
JPH07508108A (ja) * | 1993-04-16 | 1995-09-07 | ニコッド インコーポレイテッド | 透明陽画編成器及び保管トレー |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3253358A (en) * | 1963-07-17 | 1966-05-31 | John S Wright | Visual teaching system |
US3640613A (en) * | 1967-03-24 | 1972-02-08 | Scott Paper Co | Transparency display apparatus |
US3524703A (en) * | 1968-07-29 | 1970-08-18 | John S Wright | Transparency storage and display device for an overhead projector |
NL6918742A (da) * | 1969-12-13 | 1971-06-15 | ||
US3709590A (en) * | 1970-09-14 | 1973-01-09 | A Bisberg | Folder for overhead projector |
-
1980
- 1980-07-09 DE DE19803025927 patent/DE3025927A1/de not_active Withdrawn
- 1980-07-09 CA CA355,818A patent/CA1125066A/en not_active Expired
- 1980-08-18 GB GB8026841A patent/GB2060193B/en not_active Expired
- 1980-08-19 SE SE8005825A patent/SE445394B/sv not_active IP Right Cessation
- 1980-09-05 DK DK379080A patent/DK379080A/da not_active Application Discontinuation
- 1980-09-09 CH CH6749/80A patent/CH647340A5/de not_active IP Right Cessation
- 1980-09-09 FR FR8019435A patent/FR2465247A1/fr active Granted
- 1980-09-10 NL NL8005104A patent/NL8005104A/nl not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE8005825L (sv) | 1981-03-12 |
CH647340A5 (de) | 1985-01-15 |
SE445394B (sv) | 1986-06-16 |
CA1125066A (en) | 1982-06-08 |
FR2465247B1 (da) | 1983-12-16 |
FR2465247A1 (fr) | 1981-03-20 |
GB2060193A (en) | 1981-04-29 |
GB2060193B (en) | 1983-08-24 |
NL8005104A (nl) | 1981-03-13 |
DE3025927A1 (de) | 1981-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHS | Application shelved for other reasons than non-payment |