Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:assignee |
gptkb:Thomas_A._Edison
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:fieldOfInvention |
electric lighting
|
| gptkbp:filingDate |
1883-06-11
|
| gptkbp:inventedBy |
gptkb:Thomas_A._Edison
|
| gptkbp:language |
English
|
| gptkbp:patent |
278559
|
| gptkbp:publicationDate |
1883-05-29
|
| gptkbp:status |
expired
|
| gptkbp:title |
Improvement in Electric Lamps
|
| gptkbp:bfsParent |
gptkb:Harriet_Strong
|
| gptkbp:bfsLayer |
8
|
| http://www.w3.org/2000/01/rdf-schema#label |
US278559A
|