Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:wristwatch
|
| gptkbp:associatedWith |
gptkb:Webb_C._Ball
|
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:designedFor |
railroad use
|
| gptkbp:feature |
high accuracy
anti-magnetic shock resistance luminous dial |
| https://www.w3.org/2000/01/rdf-schema#label |
BALL Official RR Standard
|
| gptkbp:introducedIn |
late 19th century
|
| gptkbp:manufacturer |
gptkb:Ball_Watch_Company
|
| gptkbp:movement |
mechanical
|
| gptkbp:notableFor |
setting standards for railroad timekeeping
|
| gptkbp:usedBy |
railroad workers
|
| gptkbp:bfsParent |
gptkb:Ball_Watch_Company
|
| gptkbp:bfsLayer |
7
|