NO884439L - Hjelpemiddel for transperant-blading paa skriftprosjektoer. - Google Patents
Hjelpemiddel for transperant-blading paa skriftprosjektoer.Info
- Publication number
- NO884439L NO884439L NO88884439A NO884439A NO884439L NO 884439 L NO884439 L NO 884439L NO 88884439 A NO88884439 A NO 88884439A NO 884439 A NO884439 A NO 884439A NO 884439 L NO884439 L NO 884439L
- Authority
- NO
- Norway
- Prior art keywords
- transperant
- blading
- aid
- projects
- 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
-
- 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
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Projection Apparatus (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Window Of Vehicle (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO884439A NO166556C (no) | 1988-10-06 | 1988-10-06 | Bevegbar stoette for transparenter. |
PCT/NO1989/000102 WO1990004208A1 (en) | 1988-10-06 | 1989-10-04 | Movable support for transparencies |
EP89910944A EP0447403A1 (en) | 1988-10-06 | 1989-10-04 | Movable support for transparencies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO884439A NO166556C (no) | 1988-10-06 | 1988-10-06 | Bevegbar stoette for transparenter. |
Publications (4)
Publication Number | Publication Date |
---|---|
NO884439D0 NO884439D0 (no) | 1988-10-06 |
NO884439L true NO884439L (no) | 1990-04-09 |
NO166556B NO166556B (no) | 1991-04-29 |
NO166556C NO166556C (no) | 1991-08-07 |
Family
ID=19891301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO884439A NO166556C (no) | 1988-10-06 | 1988-10-06 | Bevegbar stoette for transparenter. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0447403A1 (no) |
NO (1) | NO166556C (no) |
WO (1) | WO1990004208A1 (no) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3537792A (en) * | 1969-03-28 | 1970-11-03 | Milprint Inc | Transparency projection system |
NL6918742A (no) * | 1969-12-13 | 1971-06-15 | ||
US4498746A (en) * | 1979-09-11 | 1985-02-12 | Wright John S | Extension platform to support transparencies for an overhead projector |
DE3401556A1 (de) * | 1984-01-18 | 1985-07-25 | Dieter 8722 Bergrheinfeld Vogt | Overhead-vortragsrahmen |
-
1988
- 1988-10-06 NO NO884439A patent/NO166556C/no unknown
-
1989
- 1989-10-04 WO PCT/NO1989/000102 patent/WO1990004208A1/en not_active Application Discontinuation
- 1989-10-04 EP EP89910944A patent/EP0447403A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0447403A1 (en) | 1991-09-25 |
WO1990004208A1 (en) | 1990-04-19 |
NO166556C (no) | 1991-08-07 |
NO884439D0 (no) | 1988-10-06 |
NO166556B (no) | 1991-04-29 |
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