NL69604C - - Google Patents
Info
- Publication number
- NL69604C NL69604C NL69604DA NL69604C NL 69604 C NL69604 C NL 69604C NL 69604D A NL69604D A NL 69604DA NL 69604 C NL69604 C NL 69604C
- 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
-
- 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
- H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structure Of Telephone Exchanges (AREA)
- Motor And Converter Starters (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14947/45A GB593619A (en) | 1945-06-13 | 1945-06-13 | Improvements in or relating to electrically operated timing arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL69604C true NL69604C (es) |
Family
ID=10050334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL69604D NL69604C (es) | 1945-06-13 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2488797A (es) |
| DE (1) | DE937652C (es) |
| FR (1) | FR928966A (es) |
| GB (1) | GB593619A (es) |
| NL (1) | NL69604C (es) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2691064A (en) * | 1950-02-21 | 1954-10-05 | American Telephone & Telegraph | Measuring circuits |
| US2702314A (en) * | 1952-07-19 | 1955-02-15 | Stromberg Carlson Co | Conversation timing means |
| US2747016A (en) * | 1952-11-14 | 1956-05-22 | Gen Dynamics Corp | Conversation timing circuit |
| US2832831A (en) * | 1953-07-14 | 1958-04-29 | Gen Telephone Lab Inc | Toll board time signal circuit |
| US2773938A (en) * | 1955-04-01 | 1956-12-11 | Gen Dynamics Corp | Trunk circuit |
| US3573378A (en) * | 1968-04-11 | 1971-04-06 | Bell Telephone Labor Inc | Telephone call timing circuit |
| US3801745A (en) * | 1971-08-23 | 1974-04-02 | W Zuckerman | Telephone call duration timer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE534487C (de) * | 1928-06-27 | 1931-09-28 | Siemens & Halske Akt Ges | Schaltungsanordnung zur Zeitzaehlung in Fernsprechanlagen |
| US1953474A (en) * | 1930-05-07 | 1934-04-03 | Bell Telephone Labor Inc | Telephone exchange system |
| DE600682C (de) * | 1931-02-08 | 1934-07-28 | Siemens & Halske Akt Ges | Schaltungsanordnung zur Bestimmung von Zeiteinheiten, insbesondere fuer Zwecke der Zeitzaehlung in Fernmeldeanlagen |
| US2112375A (en) * | 1936-03-10 | 1938-03-29 | Bell Telephone Labor Inc | Timing mechanism |
| US2232181A (en) * | 1937-01-06 | 1941-02-18 | Ass Telephone & Telegraph Co | Telephone system |
| US2241896A (en) * | 1937-08-17 | 1941-05-13 | Fides Gmbh | Telephone system |
| US2291496A (en) * | 1940-02-01 | 1942-07-28 | Associated Electric Lab Inc | Telephone system |
-
0
- NL NL69604D patent/NL69604C/xx active
-
1945
- 1945-06-13 GB GB14947/45A patent/GB593619A/en not_active Expired
-
1946
- 1946-05-27 US US672387A patent/US2488797A/en not_active Expired - Lifetime
- 1946-06-12 FR FR928966D patent/FR928966A/fr not_active Expired
-
1949
- 1949-01-01 DE DEP29438A patent/DE937652C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2488797A (en) | 1949-11-22 |
| DE937652C (de) | 1956-01-12 |
| FR928966A (fr) | 1947-12-12 |
| GB593619A (en) | 1947-10-21 |