NL42900C - - Google Patents
Info
- Publication number
- NL42900C NL42900C NL72741A NL72741A NL42900C NL 42900 C NL42900 C NL 42900C NL 72741 A NL72741 A NL 72741A NL 72741 A NL72741 A NL 72741A NL 42900 C NL42900 C NL 42900C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Prepayment Telephone Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET44262D DE651168C (de) | 1934-07-31 | 1934-07-31 | Muenzfernsprecher fuer verschiedenwertige Gespraeche |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42900C true NL42900C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1938-04-15 |
Family
ID=6507293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL72741A NL42900C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1934-07-31 | 1935-03-05 |
Country Status (6)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE872964C (de) * | 1942-10-08 | 1953-04-09 | Normalzeit G M B H | Schaltungsanordnung fuer Fernmeldeanlagen mit Waehlerbetrieb |
| US2839173A (en) * | 1950-01-19 | 1958-06-17 | Internat Telemeter Corp | Prepaid entertainment distribution system |
| US2769023A (en) * | 1950-01-19 | 1956-10-30 | Internat Telemeter Corp | Prepaid entertainment distribution system |
| US2889404A (en) * | 1952-03-24 | 1959-06-02 | Oglietti Giovanni | Token-operated telephone for automatic local calls and automatic and manual long-distance calls |
-
1934
- 1934-07-31 DE DET44262D patent/DE651168C/de not_active Expired
-
1935
- 1935-02-19 FR FR785844D patent/FR785844A/fr not_active Expired
- 1935-02-21 GB GB5624/35A patent/GB439339A/en not_active Expired
- 1935-03-05 NL NL72741A patent/NL42900C/xx active
- 1935-03-08 BE BE408302D patent/BE408302A/xx unknown
- 1935-07-27 US US33476A patent/US2093988A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR785844A (fr) | 1935-08-20 |
| BE408302A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1935-04-30 |
| DE651168C (de) | 1937-10-08 |
| US2093988A (en) | 1937-09-28 |
| GB439339A (en) | 1935-12-04 |