FR484564A - Calculographe à l'usage des aveugles - Google Patents
Calculographe à l'usage des aveuglesInfo
- Publication number
- FR484564A FR484564A FR484564DA FR484564A FR 484564 A FR484564 A FR 484564A FR 484564D A FR484564D A FR 484564DA FR 484564 A FR484564 A FR 484564A
- Authority
- FR
- France
- Prior art keywords
- calculator
- blind
- 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.)
- Expired
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
- G09B21/00—Teaching, or communicating with, the blind, deaf or mute
- G09B21/001—Teaching or communicating with blind persons
- G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR484564T | 1917-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR484564A true FR484564A (fr) | 1917-10-18 |
Family
ID=1521349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR484564D Expired FR484564A (fr) | 1917-02-21 | 1917-02-21 | Calculographe à l'usage des aveugles |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR484564A (fr) |
-
1917
- 1917-02-21 FR FR484564D patent/FR484564A/fr not_active Expired
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