FR835041A - Telephone or similar communications systems - Google Patents
Telephone or similar communications systemsInfo
- Publication number
- FR835041A FR835041A FR835041DA FR835041A FR 835041 A FR835041 A FR 835041A FR 835041D A FR835041D A FR 835041DA FR 835041 A FR835041 A FR 835041A
- Authority
- FR
- France
- Prior art keywords
- telephone
- communications systems
- similar communications
- similar
- systems
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
-
- 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
- H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE211385X | 1937-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR835041A true FR835041A (en) | 1938-12-09 |
Family
ID=3865936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR835041D Expired FR835041A (en) | 1937-03-10 | 1938-03-09 | Telephone or similar communications systems |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE420466A (en) |
CH (1) | CH211385A (en) |
FR (1) | FR835041A (en) |
GB (1) | GB498374A (en) |
-
0
- BE BE420466D patent/BE420466A/xx unknown
-
1938
- 1938-02-04 GB GB3579/38A patent/GB498374A/en not_active Expired
- 1938-03-08 CH CH211385D patent/CH211385A/en unknown
- 1938-03-09 FR FR835041D patent/FR835041A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE420466A (en) | |
GB498374A (en) | 1939-01-06 |
CH211385A (en) | 1940-09-15 |
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