US803684A (thermionic valve)
GPTKB entity
Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:alsoKnownAs |
gptkb:Fleming_valve_patent
|
| gptkbp:assignee |
gptkb:John_Ambrose_Fleming
|
| gptkbp:citation |
gptkb:US514568A
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:describes |
thermionic valve
|
| gptkbp:filingDate |
1904-11-16
|
| https://www.w3.org/2000/01/rdf-schema#label |
US803684A (thermionic valve)
|
| gptkbp:inventedBy |
gptkb:John_Ambrose_Fleming
|
| gptkbp:language |
English
|
| gptkbp:patent |
gptkb:US803684A
|
| gptkbp:publicationDate |
1905-11-07
|
| gptkbp:title |
gptkb:Electric_Valve
|
| gptkbp:bfsParent |
gptkb:John_A._Fleming
|
| gptkbp:bfsLayer |
5
|