JPS4942699B1 - - Google Patents
Info
- Publication number
- JPS4942699B1 JPS4942699B1 JP10903170A JP10903170A JPS4942699B1 JP S4942699 B1 JPS4942699 B1 JP S4942699B1 JP 10903170 A JP10903170 A JP 10903170A JP 10903170 A JP10903170 A JP 10903170A JP S4942699 B1 JPS4942699 B1 JP S4942699B1
- Authority
- JP
- Japan
- 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.)
- Pending
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)
- Microscoopes, Condenser (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6918742A NL6918742A (de) | 1969-12-13 | 1969-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4942699B1 true JPS4942699B1 (de) | 1974-11-16 |
Family
ID=19808621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10903170A Pending JPS4942699B1 (de) | 1969-12-13 | 1970-12-10 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4942699B1 (de) |
| AU (1) | AU2314870A (de) |
| BE (1) | BE760257A (de) |
| DE (1) | DE2058214A1 (de) |
| FR (1) | FR2070845B3 (de) |
| NL (1) | NL6918742A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5161021A (ja) * | 1974-11-26 | 1976-05-27 | Hitachi Plant Eng & Constr Co | Haikanruioshomonokoshohehannyu suetsukeruhoho oyobi sonosochi |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1125066A (en) * | 1979-09-11 | 1982-06-08 | John S. Wright | Extension platform to support transparencies for an overhead projector |
| NO166556C (no) * | 1988-10-06 | 1991-08-07 | Egil Kaare Hjelmeland | Bevegbar stoette for transparenter. |
| FR2642187B1 (fr) * | 1989-01-23 | 1992-04-17 | Monnot Gerard | Mallette visionneuse pour documents transparents |
| US5319400A (en) * | 1993-01-06 | 1994-06-07 | Minnesota Mining And Manufacturing Company | Light-blocking transparency assembly |
-
1969
- 1969-12-13 NL NL6918742A patent/NL6918742A/xx unknown
-
1970
- 1970-11-26 DE DE19702058214 patent/DE2058214A1/de active Pending
- 1970-12-09 AU AU23148/70A patent/AU2314870A/en not_active Expired
- 1970-12-10 JP JP10903170A patent/JPS4942699B1/ja active Pending
- 1970-12-11 BE BE760257A patent/BE760257A/xx unknown
- 1970-12-11 FR FR7044662A patent/FR2070845B3/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5161021A (ja) * | 1974-11-26 | 1976-05-27 | Hitachi Plant Eng & Constr Co | Haikanruioshomonokoshohehannyu suetsukeruhoho oyobi sonosochi |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6918742A (de) | 1971-06-15 |
| FR2070845A7 (de) | 1971-09-17 |
| AU2314870A (en) | 1972-06-15 |
| FR2070845B3 (de) | 1973-08-10 |
| BE760257A (fr) | 1971-06-11 |
| DE2058214A1 (de) | 1971-06-16 |