NL46815C - - Google Patents
Info
- Publication number
- NL46815C NL46815C NL46815DA NL46815C NL 46815 C NL46815 C NL 46815C NL 46815D A NL46815D A NL 46815DA NL 46815 C NL46815 C NL 46815C
- 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
- H04M17/023—Circuit arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Prepayment Telephone Systems (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE464334X | 1934-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL46815C true NL46815C (xx) |
Family
ID=20310247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL46815D NL46815C (xx) | 1934-10-23 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2133523A (xx) |
| BE (1) | BE411832A (xx) |
| DE (1) | DE662774C (xx) |
| FR (1) | FR796469A (xx) |
| GB (1) | GB464334A (xx) |
| NL (1) | NL46815C (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE758222C (de) * | 1939-01-12 | 1954-03-22 | Normalzeit G M B H | Schaltungsanordnung zur Kennzeichnung des Gespraechszustandes ueber die Teilnehmeranschlussleitung in Fernsprechanlagen |
| US2542568A (en) * | 1945-12-05 | 1951-02-20 | Comm Equipment And Engineering | Coin-controlled program distribution system |
| US2867689A (en) * | 1950-01-28 | 1959-01-06 | Siemens Ag | Telephone pay station comprising coin counting device for different call rates |
| US2765366A (en) * | 1952-09-26 | 1956-10-02 | Bell Telephone Labor Inc | Fraudulent ground corrective for coin collector circuit |
| US2820847A (en) * | 1953-05-14 | 1958-01-21 | Gen Telephone Lab Inc | Reverse battery paystation |
| US2806084A (en) * | 1953-12-07 | 1957-09-10 | Gen Telephone Lab Inc | Postpay paystation with coin control circuit |
| GB810351A (en) * | 1956-07-02 | 1959-03-11 | Ass Automation Ltd | Coin collectors for telecommunication services |
| DE1241494B (de) * | 1963-08-16 | 1967-06-01 | Normalzeit G M B H | Schaltungsanordnung fuer Fernsprechteilnehmer-apparate mit einem Edelmetall-UEberbrueckungs-kontakt im Sprechkreis |
-
0
- BE BE411832D patent/BE411832A/xx unknown
- NL NL46815D patent/NL46815C/xx active
-
1935
- 1935-03-09 DE DET45043D patent/DE662774C/de not_active Expired
- 1935-10-15 GB GB28406/35A patent/GB464334A/en not_active Expired
- 1935-10-17 FR FR796469D patent/FR796469A/fr not_active Expired
- 1935-10-19 US US45816A patent/US2133523A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2133523A (en) | 1938-10-18 |
| FR796469A (fr) | 1936-04-07 |
| GB464334A (en) | 1937-04-15 |
| BE411832A (xx) | |
| DE662774C (de) | 1938-07-21 |