BE444056A - - Google Patents
Info
- Publication number
- BE444056A BE444056A BE444056DA BE444056A BE 444056 A BE444056 A BE 444056A BE 444056D A BE444056D A BE 444056DA BE 444056 A BE444056 A BE 444056A
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL5282D DE881062C (de) | 1941-01-11 | 1941-01-11 | Elektromotorisch angetriebener Stromstossgeber mit dekadischem System und Klartextanzeigevorrichtung fuer Fernsprech-Kommandoanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE444056A true BE444056A (cs) |
Family
ID=7256763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE444056D BE444056A (cs) | 1941-01-11 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE444056A (cs) |
| DE (1) | DE881062C (cs) |
-
0
- BE BE444056D patent/BE444056A/xx unknown
-
1941
- 1941-01-11 DE DEL5282D patent/DE881062C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE881062C (de) | 1953-08-03 |