Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
electrical switch
|
| gptkbp:developedBy |
gptkb:Western_Electric
|
| https://www.w3.org/2000/01/rdf-schema#label |
No. 3XB switch
|
| gptkbp:introducedIn |
1920s
|
| gptkbp:replacedBy |
crossbar switch
|
| gptkbp:technology |
electromechanical switch
|
| gptkbp:usedBy |
gptkb:Bell_System
|
| gptkbp:usedFor |
automatic telephone switching
|
| gptkbp:usedIn |
gptkb:smartphone
|
| gptkbp:bfsParent |
gptkb:Bell_System
|
| gptkbp:bfsLayer |
5
|