Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:Signaling_system
|
| gptkbp:inventedBy |
gptkb:19th_century
|
| gptkbp:notableExample |
Wigwag railroad crossing signal
|
| gptkbp:operates |
Alternating movement
|
| gptkbp:relatedTo |
gptkb:Morse_code
Semaphore signaling |
| gptkbp:replacedBy |
Flashing light signals
|
| gptkbp:status |
Largely obsolete
|
| gptkbp:usedBy |
gptkb:United_States_Army_Signal_Corps
|
| gptkbp:usedFor |
Visual signaling
Warning vehicles |
| gptkbp:usedIn |
Military communications
Traffic control Railroad crossings |
| gptkbp:bfsParent |
gptkb:Albert_James_Myer
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
Wig-wag signaling system
|