BE506189A - - Google Patents
Info
- Publication number
- BE506189A BE506189A BE506189DA BE506189A BE 506189 A BE506189 A BE 506189A BE 506189D A BE506189D A BE 506189DA BE 506189 A BE506189 A BE 506189A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1037275T | 1951-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE506189A true BE506189A (en:Method) |
Family
ID=9586921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE506189D BE506189A (en:Method) | 1951-05-18 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE506189A (en:Method) |
| CH (1) | CH297205A (en:Method) |
| FR (1) | FR1037275A (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2593985A1 (fr) * | 1986-02-05 | 1987-08-07 | Wansor Investments Ltd | Telephone lumineux |
-
0
- BE BE506189D patent/BE506189A/xx unknown
-
1951
- 1951-05-18 FR FR1037275D patent/FR1037275A/fr not_active Expired
- 1951-10-01 CH CH297205D patent/CH297205A/de unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2593985A1 (fr) * | 1986-02-05 | 1987-08-07 | Wansor Investments Ltd | Telephone lumineux |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1037275A (fr) | 1953-09-15 |
| CH297205A (de) | 1954-03-15 |