BE535828A - - Google Patents
Info
- Publication number
- BE535828A BE535828A BE535828DA BE535828A BE 535828 A BE535828 A BE 535828A BE 535828D A BE535828D A BE 535828DA BE 535828 A BE535828 A BE 535828A
- 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
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB449055A GB792670A (en) | 1955-02-15 | 1955-02-15 | Improvements in or relating to an electric signalling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE535828A true BE535828A (en) | 1959-12-19 |
Family
ID=9778159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE535828D BE535828A (en) | 1955-02-15 | 1955-02-17 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE535828A (en) |
| FR (1) | FR1119139A (en) |
| GB (1) | GB792670A (en) |
-
1955
- 1955-02-15 FR FR1119139D patent/FR1119139A/en not_active Expired
- 1955-02-15 GB GB449055A patent/GB792670A/en not_active Expired
- 1955-02-17 BE BE535828D patent/BE535828A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1119139A (en) | 1956-06-15 |
| GB792670A (en) | 1958-04-02 |