Statements (11)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:US_patent
|
gptkbp:assignee |
gptkb:Thomas_Edison
|
gptkbp:country |
gptkb:United_States
|
gptkbp:filingDate |
1876-05-25
|
https://www.w3.org/2000/01/rdf-schema#label |
US341214A
|
gptkbp:inventedBy |
gptkb:Thomas_Edison
|
gptkbp:publicationDate |
1886-05-04
|
gptkbp:status |
expired
|
gptkbp:title |
Improvement in Electric Lamps
|
gptkbp:bfsParent |
gptkb:Charles_Sumner_Tainter
|
gptkbp:bfsLayer |
5
|