DK128134B - Shift projector. - Google Patents
Shift projector.Info
- Publication number
- DK128134B DK128134B DK173471A DK173471A DK128134B DK 128134 B DK128134 B DK 128134B DK 173471 A DK173471 A DK 173471A DK 173471 A DK173471 A DK 173471A DK 128134 B DK128134 B DK 128134B
- Authority
- DK
- Denmark
- Prior art keywords
- projector
- shift
- shift projector
- 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)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19707013986 DE7013986U (en) | 1970-04-13 | 1970-04-13 | WRITING PROJECTOR. |
Publications (1)
Publication Number | Publication Date |
---|---|
DK128134B true DK128134B (en) | 1974-03-04 |
Family
ID=6610935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK173471A DK128134B (en) | 1970-04-13 | 1971-04-13 | Shift projector. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE7013986U (en) |
DK (1) | DK128134B (en) |
FR (1) | FR2083285A5 (en) |
GB (1) | GB1316704A (en) |
-
1970
- 1970-04-13 DE DE19707013986 patent/DE7013986U/en not_active Expired
-
1971
- 1971-03-31 FR FR7111276A patent/FR2083285A5/fr not_active Expired
- 1971-04-13 DK DK173471A patent/DK128134B/en unknown
- 1971-04-19 GB GB2349971A patent/GB1316704A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1316704A (en) | 1973-05-16 |
DE7013986U (en) | 1970-08-27 |
FR2083285A5 (en) | 1971-12-10 |
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