Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:telegraph
|
| gptkbp:category |
19th-century inventions
telecommunications history |
| gptkbp:displayType |
needle indicator
|
| gptkbp:introducedIn |
1837
|
| gptkbp:inventedBy |
gptkb:Charles_Wheatstone
gptkb:William_Fothergill_Cooke |
| gptkbp:notableFeature |
visual display
multiple needles possible needle points to letters or numbers |
| gptkbp:operatedBy |
gptkb:Electricity
|
| gptkbp:predecessor |
gptkb:telegraph
|
| gptkbp:successor |
gptkb:Morse_telegraph
|
| gptkbp:usedBy |
railways
early telegraph networks railway signalmen |
| gptkbp:usedFor |
electrical telegraphy
|
| gptkbp:usedIn |
gptkb:United_Kingdom
|
| gptkbp:bfsParent |
gptkb:Werner_von_Siemens
|
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
pointer telegraph
|