Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:country |
gptkb:United_Kingdom
|
| gptkbp:field |
electric lighting
|
| https://www.w3.org/2000/01/rdf-schema#label |
UK Patent 4933 (1878)
|
| gptkbp:inventedBy |
gptkb:Joseph_Swan
|
| gptkbp:patent |
4933
|
| gptkbp:publicationYear |
1878
|
| gptkbp:relatedTo |
incandescent lamp
|
| gptkbp:status |
granted
|
| gptkbp:title |
Improvements in Electric Lamps
|
| gptkbp:bfsParent |
gptkb:Joseph_Swan
|
| gptkbp:bfsLayer |
5
|