NL82021C - - Google Patents
Info
- Publication number
- NL82021C NL82021C NL82021DA NL82021C NL 82021 C NL82021 C NL 82021C NL 82021D A NL82021D A NL 82021DA NL 82021 C NL82021 C NL 82021C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US141141A US2672515A (en) | 1950-01-28 | 1950-01-28 | Calling station identification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL82021C true NL82021C (en:Method) |
Family
ID=22494343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL82021D NL82021C (en:Method) | 1950-01-28 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2672515A (en:Method) |
| BE (1) | BE500868A (en:Method) |
| DE (1) | DE833375C (en:Method) |
| FR (1) | FR1055812A (en:Method) |
| GB (1) | GB683794A (en:Method) |
| NL (1) | NL82021C (en:Method) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2733297A (en) * | 1956-01-31 | Multiparty selective signaling and identification system | ||
| NL83176C (en:Method) * | 1952-10-21 | |||
| US2879338A (en) * | 1953-02-09 | 1959-03-24 | Bell Telephone Labor Inc | Identification system |
| US2809235A (en) * | 1953-02-11 | 1957-10-08 | Gen Dynamics Corp | Telephone system |
| US2866008A (en) * | 1955-02-28 | 1958-12-23 | Gen Telephone Lab Inc | Testing apparatus for calling line identifiers |
| US3024316A (en) * | 1956-12-03 | 1962-03-06 | Automatic Elect Lab | Calling line and station identification system |
| US3029314A (en) * | 1957-11-12 | 1962-04-10 | Itt | Party line detector connector |
| US3025354A (en) * | 1957-12-23 | 1962-03-13 | Itt | Party line substation identification system |
| FR1212783A (fr) * | 1958-07-11 | 1960-03-25 | Constr Telephoniques | Perfectionnements aux dispositifs d'identification |
| DE1080150B (de) * | 1958-10-17 | 1960-04-21 | Siemens Ag | Schaltungsanordnung zur Feststellung der Rufnummern von Teilnehmern einer Gesellschaftsleitung |
| US3046344A (en) * | 1958-11-26 | 1962-07-24 | Automatic Elect Lab | Calling station detector |
| US3087019A (en) * | 1960-03-30 | 1963-04-23 | Automatic Elect Lab | Terminal per station identification circuit |
| US3364310A (en) * | 1964-10-01 | 1968-01-16 | Bell Telephone Labor Inc | Automatic call recording system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR777351A (fr) * | 1934-07-12 | 1935-02-18 | Siemens Ag | Disposition de couplage pour installations téléphoniques avec bureaux principaux et secondaires et fonctionnement avec sélecteurs |
| NL52905C (en:Method) * | 1937-08-21 | |||
| US2270123A (en) * | 1938-05-30 | 1942-01-13 | Fides Gmbh | Telephone system |
| GB524003A (en) * | 1939-01-19 | 1940-07-26 | Ass Telephone & Telegraph Co | Improvements in or relating to telephone systems |
| BE441725A (en:Method) * | 1939-09-21 | |||
| US2265844A (en) * | 1940-07-03 | 1941-12-09 | Bell Telephone Labor Inc | Calling line identification circuit |
| US2252766A (en) * | 1940-10-17 | 1941-08-19 | Bell Telephone Labor Inc | Signaling system |
| BE477655A (en:Method) * | 1941-08-15 | |||
| BE473455A (en:Method) * | 1946-07-25 |
-
0
- NL NL82021D patent/NL82021C/xx active
- BE BE500868D patent/BE500868A/xx unknown
-
1950
- 1950-01-28 US US141141A patent/US2672515A/en not_active Expired - Lifetime
- 1950-12-21 FR FR1055812D patent/FR1055812A/fr not_active Expired
-
1951
- 1951-01-12 GB GB920/51A patent/GB683794A/en not_active Expired
- 1951-01-28 DE DEW5048A patent/DE833375C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE500868A (en:Method) | |
| US2672515A (en) | 1954-03-16 |
| FR1055812A (fr) | 1954-02-22 |
| DE833375C (de) | 1952-03-06 |
| GB683794A (en) | 1952-12-03 |