BE636631A - - Google Patents
Info
- Publication number
- BE636631A BE636631A BE636631DA BE636631A BE 636631 A BE636631 A BE 636631A BE 636631D A BE636631D A BE 636631DA BE 636631 A BE636631 A BE 636631A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR907986A FR1332465A (fr) | 1962-08-28 | 1962-08-28 | Dispositif de limitation des appels téléphoniques et téléphones munis du présent dispositif ou dispositif similaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE636631A true BE636631A (https=) |
Family
ID=8785859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE636631D BE636631A (https=) | 1962-08-28 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE636631A (https=) |
| CH (1) | CH403872A (https=) |
| DE (1) | DE1206486B (https=) |
| FR (1) | FR1332465A (https=) |
| GB (1) | GB1018274A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1268215B (de) * | 1965-11-26 | 1968-05-16 | Christos Stathacopoulos | Vorrichtung an einem Fernsprechapparat zum Sperren des Apparates fuer Selbstwaehlferngespraeche |
| GB2124453A (en) * | 1982-07-30 | 1984-02-15 | Shamshad Mohammed Khan | Telephone monitoring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1749067U (de) * | 1957-05-17 | 1957-07-25 | Hagenuk Vorm Neufeldt & Kuehnk | Schrittschaltwerk, vorzugsweise fuer sperrnummernschalter von muenzfernsprechern. |
-
0
- BE BE636631D patent/BE636631A/xx unknown
-
1962
- 1962-08-28 FR FR907986A patent/FR1332465A/fr not_active Expired
-
1963
- 1963-08-05 CH CH963763A patent/CH403872A/fr unknown
- 1963-08-23 DE DEM57927A patent/DE1206486B/de active Pending
- 1963-08-28 GB GB3406063A patent/GB1018274A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1018274A (en) | 1966-01-26 |
| CH403872A (fr) | 1965-12-15 |
| FR1332465A (fr) | 1963-07-12 |
| DE1206486B (de) | 1965-12-09 |