Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:musician
|
| gptkbp:bfsLayer |
6
|
| gptkbp:bfsParent |
gptkb:Lee_De_Forest
|
| gptkbp:developed_by |
gptkb:United_States
|
| gptkbp:first_introduced |
1910
|
| gptkbp:historical_significance |
early sound recording technology
|
| https://www.w3.org/2000/01/rdf-schema#label |
phonofilm
|
| gptkbp:invention |
gptkb:Lee_De_Forest
|
| gptkbp:is_available_in |
1920s
|
| gptkbp:related_to |
talkies
|
| gptkbp:successor |
gptkb:Vitaphone
|
| gptkbp:technology |
optical sound
|
| gptkbp:used_in |
short films
|