NL121492C - - Google Patents
Info
- Publication number
- NL121492C NL121492C NL121492DA NL121492C NL 121492 C NL121492 C NL 121492C NL 121492D A NL121492D A NL 121492DA NL 121492 C NL121492 C NL 121492C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/10—Providing fault- or trouble-signals
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
- Relay Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR821056A FR1259027A (fr) | 1960-03-11 | 1960-03-11 | Perfectionnement aux systèmes de signalisation automatique des défauts |
| FR822629A FR77422E (fr) | 1960-03-11 | 1960-03-28 | Perfectionnement aux systèmes de signalisation automatique des défauts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL121492C true NL121492C (https=) |
Family
ID=26185262
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL262285D NL262285A (https=) | 1960-03-11 | ||
| NL121492D NL121492C (https=) | 1960-03-11 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL262285D NL262285A (https=) | 1960-03-11 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE601159A (https=) |
| CH (1) | CH387497A (https=) |
| DE (1) | DE1121185B (https=) |
| FR (2) | FR1259027A (https=) |
| GB (1) | GB923743A (https=) |
| LU (1) | LU39863A1 (https=) |
| NL (2) | NL121492C (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1266863B (de) * | 1963-05-14 | 1968-04-25 | Bbc Brown Boveri & Cie | Einrichtung zur zentralen UEberwachung und chronologischen Registrierung mehrerer ineinem ausgedehnten Energieversorgungsnetz raeumlich und zeitlich getrennt ablaufender Schaltereignisse |
| GB2162670A (en) * | 1983-08-27 | 1986-02-05 | Hunslet | Monitoring system |
-
0
- NL NL262285D patent/NL262285A/xx unknown
- NL NL121492D patent/NL121492C/xx active
- GB GB923743D patent/GB923743A/en active Active
-
1960
- 1960-03-11 FR FR821056A patent/FR1259027A/fr not_active Expired
- 1960-03-28 FR FR822629A patent/FR77422E/fr not_active Expired
-
1961
- 1961-03-02 CH CH251161A patent/CH387497A/de unknown
- 1961-03-03 DE DE1961A0036877 patent/DE1121185B/de active Pending
- 1961-03-08 LU LU39863D patent/LU39863A1/xx unknown
- 1961-03-09 BE BE601159A patent/BE601159A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU39863A1 (https=) | 1961-05-08 |
| DE1121185B (de) | 1962-01-04 |
| BE601159A (fr) | 1961-09-11 |
| NL262285A (https=) | |
| FR1259027A (fr) | 1961-04-21 |
| GB923743A (https=) | |
| FR77422E (fr) | 1962-03-02 |
| CH387497A (de) | 1965-01-31 |