Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
telegraph
|
| gptkbp:component |
alarm bell
pull box telegraph wire |
| gptkbp:deployment |
gptkb:Boston
|
| https://www.w3.org/2000/01/rdf-schema#label |
fire alarm telegraph
|
| gptkbp:inventedBy |
gptkb:Moses_G._Farmer
gptkb:William_Francis_Channing |
| gptkbp:notablePlace |
gptkb:Canada
gptkb:United_Kingdom gptkb:United_States |
| gptkbp:operatedBy |
municipal fire departments
|
| gptkbp:relatedTo |
telegraphy
emergency communication system fire alarm box |
| gptkbp:replacedBy |
modern electronic fire alarm systems
telephone fire alarm |
| gptkbp:status |
mostly obsolete
|
| gptkbp:technology |
wired communication
|
| gptkbp:usedFor |
reporting fires
|
| gptkbp:yearInstalled |
1852
|
| gptkbp:bfsParent |
gptkb:William_Francis_Channing
|
| gptkbp:bfsLayer |
5
|