AU1872870A - - Google Patents
Info
- Publication number
- AU1872870A AU1872870A AU18728/70A AU1872870A AU1872870A AU 1872870 A AU1872870 A AU 1872870A AU 18728/70 A AU18728/70 A AU 18728/70A AU 1872870 A AU1872870 A AU 1872870A AU 1872870 A AU1872870 A AU 1872870A
- Authority
- AU
- Australia
- Legal status (The legal status 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 status listed.)
- Expired
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU18728/70A AU1872870A (pl) | 1970-08-12 | 1970-08-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU18728/70A AU1872870A (pl) | 1970-08-12 | 1970-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU1872870A true AU1872870A (pl) | 1972-02-17 |
Family
ID=3708415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU18728/70A Expired AU1872870A (pl) | 1970-08-12 | 1970-08-12 |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU1872870A (pl) |
-
1970
- 1970-08-12 AU AU18728/70A patent/AU1872870A/en not_active Expired