NL58889C - - Google Patents
Info
- Publication number
- NL58889C NL58889C NL58889DA NL58889C NL 58889 C NL58889 C NL 58889C NL 58889D A NL58889D A NL 58889DA NL 58889 C NL58889 C NL 58889C
- 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)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL252927X | 1941-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL58889C true NL58889C (pm) |
Family
ID=19781183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL58889D NL58889C (pm) | 1941-04-25 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2454770A (pm) |
| CH (1) | CH252927A (pm) |
| FR (1) | FR881537A (pm) |
| NL (1) | NL58889C (pm) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2454770A (en) * | 1941-04-25 | 1948-11-30 | Int Standard Electric Corp | Identification circuit arrangement for automatic or semiautomatic telephone systems |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE473455A (pm) * | 1946-07-25 | |||
| US2554149A (en) * | 1948-07-08 | 1951-05-22 | Bell Telephone Labor Inc | Translator for calling line identification |
| US2604540A (en) * | 1949-09-13 | 1952-07-22 | Bell Telephone Labor Inc | Calling line identification for automatic ticketing systems |
| US2875092A (en) * | 1956-04-20 | 1959-02-24 | Du Pont | Process for chemically bonding a coating to an organic polymer substrate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1846516A (en) * | 1931-06-05 | 1932-02-23 | American Telephone & Telegraph | Telephone system |
| USRE23388E (en) * | 1940-09-20 | 1951-07-10 | Line identification circuit for | |
| US2284870A (en) * | 1940-09-20 | 1942-06-02 | Bell Telephone Labor Inc | Telephone system |
| NL58889C (pm) * | 1941-04-25 |
-
0
- NL NL58889D patent/NL58889C/xx active
-
1942
- 1942-04-02 CH CH252927D patent/CH252927A/de unknown
- 1942-04-25 FR FR881537D patent/FR881537A/fr not_active Expired
-
1943
- 1943-01-22 US US473271A patent/US2454770A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2454770A (en) * | 1941-04-25 | 1948-11-30 | Int Standard Electric Corp | Identification circuit arrangement for automatic or semiautomatic telephone systems |
Also Published As
| Publication number | Publication date |
|---|---|
| FR881537A (fr) | 1943-04-28 |
| US2454770A (en) | 1948-11-30 |
| CH252927A (de) | 1948-01-31 |