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
|
https://www.w3.org/2000/01/rdf-schema#label |
US278559A
|
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
|