CH217635A - Telecommunications exchange system. - Google Patents
Telecommunications exchange system.Info
- Publication number
- CH217635A CH217635A CH217635DA CH217635A CH 217635 A CH217635 A CH 217635A CH 217635D A CH217635D A CH 217635DA CH 217635 A CH217635 A CH 217635A
- Authority
- CH
- Switzerland
- Prior art keywords
- exchange system
- telecommunications exchange
- telecommunications
- exchange
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/32—Feeding material to be worked to nail or pin making machines
-
- 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
-
- 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)
- Mechanical Engineering (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE217635X | 1937-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH217635A true CH217635A (en) | 1941-10-31 |
Family
ID=3866045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH217635D CH217635A (en) | 1937-02-22 | 1938-02-22 | Telecommunications exchange system. |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE420107A (en) |
CH (1) | CH217635A (en) |
FR (1) | FR834006A (en) |
GB (1) | GB498560A (en) |
NL (1) | NL55281C (en) |
-
0
- NL NL55281D patent/NL55281C/xx active
- BE BE420107D patent/BE420107A/xx unknown
-
1938
- 1938-01-18 GB GB1670/38A patent/GB498560A/en not_active Expired
- 1938-02-18 FR FR834006D patent/FR834006A/en not_active Expired
- 1938-02-22 CH CH217635D patent/CH217635A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB498560A (en) | 1939-01-10 |
FR834006A (en) | 1938-11-09 |
NL55281C (en) | |
BE420107A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH235154A (en) | Telecommunication system. | |
CH202825A (en) | Cannetière. | |
CH236666A (en) | Telecommunications exchange system. | |
CH239303A (en) | Telecommunication system. | |
CH217635A (en) | Telecommunications exchange system. | |
CH234264A (en) | Telephone system. | |
CH202671A (en) | Telegraph system. | |
CH211385A (en) | Telecommunication system. | |
CH213686A (en) | Telex exchange. | |
CH205696A (en) | Picture teletype. | |
DK58803C (en) | Telegraph system. | |
CH205031A (en) | Telegraph system. | |
CH204086A (en) | Telegraph system. | |
CH203263A (en) | Telegraph system. | |
CH204648A (en) | Telegraph system. | |
DK57487C (en) | Teletypewriter system. | |
DK57405C (en) | Teletypewriter system. | |
CH214292A (en) | Telex system. | |
CH269348A (en) | Telegraph exchange system. | |
CH185792A (en) | Telecommunication system. | |
CH244473A (en) | Telecommunications exchange facility. | |
CH274629A (en) | Automatic telephone exchange system. | |
CH214505A (en) | Telephone. | |
DK59385C (en) | Telephone set. | |
DK54647C (en) | Telephone system. |