FR2273332A1 - Desk key for language teacher - has illuminating device and built-in electrical switches - Google Patents
Desk key for language teacher - has illuminating device and built-in electrical switchesInfo
- Publication number
- FR2273332A1 FR2273332A1 FR7508704A FR7508704A FR2273332A1 FR 2273332 A1 FR2273332 A1 FR 2273332A1 FR 7508704 A FR7508704 A FR 7508704A FR 7508704 A FR7508704 A FR 7508704A FR 2273332 A1 FR2273332 A1 FR 2273332A1
- Authority
- FR
- France
- Prior art keywords
- switch
- built
- operating part
- illuminating device
- electrical switches
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/06—Foreign languages
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Push-Button Switches (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Switch Cases, Indication, And Locking (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742413698 DE2413698C3 (de) | 1974-03-21 | Steckbar ausgebildete Taste für ein Lehrerpult einer Sprachlehranlage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2273332A1 true FR2273332A1 (en) | 1975-12-26 |
| FR2273332B3 FR2273332B3 (enrdf_load_stackoverflow) | 1977-11-25 |
Family
ID=5910788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7508704A Granted FR2273332A1 (en) | 1974-03-21 | 1975-03-20 | Desk key for language teacher - has illuminating device and built-in electrical switches |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH584963A5 (enrdf_load_stackoverflow) |
| FR (1) | FR2273332A1 (enrdf_load_stackoverflow) |
-
1975
- 1975-02-28 CH CH255075A patent/CH584963A5/xx not_active IP Right Cessation
- 1975-03-20 FR FR7508704A patent/FR2273332A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2273332B3 (enrdf_load_stackoverflow) | 1977-11-25 |
| CH584963A5 (enrdf_load_stackoverflow) | 1977-02-15 |
| DE2413698B2 (de) | 1976-10-21 |
| DE2413698A1 (de) | 1975-10-02 |
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