De Forest Radio Telephone & Telegraph Company
GPTKB entity
Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:company
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:foundedBy |
gptkb:Lee_de_Forest
|
| gptkbp:foundedYear |
1907
|
| gptkbp:headquartersLocation |
gptkb:New_York_City
|
| gptkbp:industry |
gptkb:radio_station
telecommunications |
| gptkbp:keyPerson |
gptkb:Lee_de_Forest
|
| gptkbp:notableEvent |
early radio broadcasting experiments
|
| gptkbp:notableProduct |
gptkb:Audion_vacuum_tube
|
| gptkbp:predecessor |
De Forest Wireless Telegraph Company
|
| gptkbp:status |
defunct
|
| gptkbp:bfsParent |
gptkb:Allen_B._Du_Mont
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
De Forest Radio Telephone & Telegraph Company
|