BE353077A - - Google Patents
Info
- Publication number
- BE353077A BE353077A BE353077DA BE353077A BE 353077 A BE353077 A BE 353077A BE 353077D A BE353077D A BE 353077DA BE 353077 A BE353077 A BE 353077A
- Authority
- BE
- Belgium
- Prior art keywords
- telephone system
- relay
- operator
- call
- subscriber
- Prior art date
Links
- 230000000875 corresponding Effects 0.000 claims description 5
- 230000011664 signaling Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims 1
- 238000004804 winding Methods 0.000 description 6
- 230000000903 blocking Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 210000000988 Bone and Bones Anatomy 0.000 description 1
- 230000003213 activating Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/10—Manual exchanges using separate plug for each subscriber
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE353077A true BE353077A (ja) |
Family
ID=27727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE353077D BE353077A (ja) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE353077A (ja) |
-
0
- BE BE353077D patent/BE353077A/fr unknown
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