Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Patent
|
| gptkbp:applicationNumber |
US186787A
|
| gptkbp:assignee |
gptkb:Thomas_A._Edison
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:fieldOfUse |
Electric_Lighting
|
| https://www.w3.org/2000/01/rdf-schema#label |
US Patent 186,787
|
| gptkbp:inventor |
gptkb:Thomas_A._Edison
|
| gptkbp:issuedOn |
1877-02-27
|
| gptkbp:patentType |
Utility Patent
|
| gptkbp:status |
Expired
|
| gptkbp:title |
Improvement in Electric Lights
|