NL7203634A - - Google Patents
Info
- Publication number
- NL7203634A NL7203634A NL7203634A NL7203634A NL7203634A NL 7203634 A NL7203634 A NL 7203634A NL 7203634 A NL7203634 A NL 7203634A NL 7203634 A NL7203634 A NL 7203634A NL 7203634 A NL7203634 A NL 7203634A
- Authority
- NL
- Netherlands
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
- G09B21/006—Teaching or communicating with blind persons using audible presentation of the information
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7203634A NL7203634A (de) | 1972-03-17 | 1972-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7203634A NL7203634A (de) | 1972-03-17 | 1972-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7203634A true NL7203634A (de) | 1973-09-19 |
Family
ID=19815640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7203634A NL7203634A (de) | 1972-03-17 | 1972-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL7203634A (de) |
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1972
- 1972-03-17 NL NL7203634A patent/NL7203634A/xx unknown