BE447963A - - Google Patents
Info
- Publication number
- BE447963A BE447963A BE447963DA BE447963A BE 447963 A BE447963 A BE 447963A BE 447963D A BE447963D A BE 447963DA BE 447963 A BE447963 A BE 447963A
- Authority
- BE
- Belgium
- Prior art keywords
- time
- signals
- station
- alarm
- switch
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 12
- 230000011664 signaling Effects 0.000 description 4
- 244000007853 Sarothamnus scoparius Species 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 244000191761 Sida cordifolia Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/432—Arrangements for calling a subscriber at a specific time, e.g. morning call service
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Emergency Alarm Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL58027T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447963A true BE447963A (mo) |
Family
ID=19756418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447963D BE447963A (mo) |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE447963A (mo) |
| NL (1) | NL58027C (mo) |
-
0
- NL NL58027D patent/NL58027C/xx active
- BE BE447963D patent/BE447963A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL58027C (mo) |
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