Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:assignee |
gptkb:Thomas_A._Edison
|
| gptkbp:class |
H01K1/00
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:describes |
An improvement in electric lamps, particularly in the construction of the filament and its supports.
|
| gptkbp:filingDate |
1887-11-04
|
| https://www.w3.org/2000/01/rdf-schema#label |
US609250A
|
| gptkbp:inventedBy |
gptkb:Thomas_A._Edison
|
| gptkbp:publicationDate |
1898-08-16
|
| gptkbp:status |
expired
|
| gptkbp:title |
Electric lamp
|
| gptkbp:bfsParent |
gptkb:Starting_Device_for_Explosive-Engines
|
| gptkbp:bfsLayer |
7
|