FR2180444B1 - - Google Patents
Info
- Publication number
- FR2180444B1 FR2180444B1 FR7213423A FR7213423A FR2180444B1 FR 2180444 B1 FR2180444 B1 FR 2180444B1 FR 7213423 A FR7213423 A FR 7213423A FR 7213423 A FR7213423 A FR 7213423A FR 2180444 B1 FR2180444 B1 FR 2180444B1
- Authority
- FR
- France
- 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
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/53—Generation of additional signals, e.g. additional pulses
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7213423A FR2180444B1 (de) | 1972-04-17 | 1972-04-17 | |
SE7304802A SE378730B (de) | 1972-04-17 | 1973-04-05 | |
FI113273A FI57677C (fi) | 1972-04-17 | 1973-04-10 | Tidskalibrerad brytanordning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7213423A FR2180444B1 (de) | 1972-04-17 | 1972-04-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2180444A1 FR2180444A1 (de) | 1973-11-30 |
FR2180444B1 true FR2180444B1 (de) | 1974-12-20 |
Family
ID=9096973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7213423A Expired FR2180444B1 (de) | 1972-04-17 | 1972-04-17 |
Country Status (3)
Country | Link |
---|---|
FI (1) | FI57677C (de) |
FR (1) | FR2180444B1 (de) |
SE (1) | SE378730B (de) |
-
1972
- 1972-04-17 FR FR7213423A patent/FR2180444B1/fr not_active Expired
-
1973
- 1973-04-05 SE SE7304802A patent/SE378730B/xx unknown
- 1973-04-10 FI FI113273A patent/FI57677C/sv active
Also Published As
Publication number | Publication date |
---|---|
FI57677B (fi) | 1980-05-30 |
SE378730B (de) | 1975-09-08 |
FI57677C (fi) | 1980-09-10 |
FR2180444A1 (de) | 1973-11-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |