NL20919C - - Google Patents
Info
- Publication number
- NL20919C NL20919C NL20919DA NL20919C NL 20919 C NL20919 C NL 20919C NL 20919D A NL20919D A NL 20919DA NL 20919 C NL20919 C NL 20919C
- 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)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2572825A GB264236A (en) | 1925-10-14 | 1925-10-14 | Improvements in telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL20919C true NL20919C (en:Method) |
Family
ID=10232319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL20919D NL20919C (en:Method) | 1925-10-14 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE336187A (en:Method) |
| FR (1) | FR620949A (en:Method) |
| GB (1) | GB264236A (en:Method) |
| NL (1) | NL20919C (en:Method) |
-
0
- BE BE336187D patent/BE336187A/xx unknown
- NL NL20919D patent/NL20919C/xx active
-
1925
- 1925-10-14 GB GB2572825A patent/GB264236A/en not_active Expired
-
1926
- 1926-09-01 FR FR620949D patent/FR620949A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR620949A (fr) | 1927-05-02 |
| BE336187A (en:Method) | |
| GB264236A (en) | 1927-01-14 |