NL18444C - - Google Patents
Info
- Publication number
- NL18444C NL18444C NL18444DA NL18444C NL 18444 C NL18444 C NL 18444C NL 18444D A NL18444D A NL 18444DA NL 18444 C NL18444 C NL 18444C
- 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
- H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB253425A GB251335A (en) | 1925-01-28 | 1925-01-28 | Improvements in telephone exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL18444C true NL18444C (cs) |
Family
ID=9741252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL18444D NL18444C (cs) | 1925-01-28 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH116918A (cs) |
| FR (1) | FR602773A (cs) |
| GB (1) | GB251335A (cs) |
| NL (1) | NL18444C (cs) |
-
0
- NL NL18444D patent/NL18444C/xx active
-
1925
- 1925-01-28 GB GB253425A patent/GB251335A/en not_active Expired
- 1925-07-31 CH CH116918D patent/CH116918A/de unknown
- 1925-08-31 FR FR602773D patent/FR602773A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR602773A (fr) | 1926-03-26 |
| CH116918A (de) | 1926-10-01 |
| GB251335A (en) | 1926-04-28 |