Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:communication
|
| gptkbp:alsoKnownAs |
gptkb:American_Morse_Code
|
| gptkbp:developedBy |
gptkb:Morse_Code
|
| gptkbp:hasFeature |
distinct from International Morse Code
variable length dots and dashes |
| gptkbp:hasLetterRepresentation |
different for some letters compared to International Morse Code
|
| https://www.w3.org/2000/01/rdf-schema#label |
Railroad Morse
|
| gptkbp:replacedBy |
gptkb:International_Morse_Code
|
| gptkbp:usedBy |
gptkb:Western_Union
gptkb:American_railroads railroads |
| gptkbp:usedFor |
railroad operations
train dispatching telegraph communication |
| gptkbp:usedIn |
gptkb:Canada
gptkb:United_States |
| gptkbp:usedUntil |
mid-20th century
|
| gptkbp:bfsParent |
gptkb:American_Morse_Code
|
| gptkbp:bfsLayer |
6
|