Statements (12)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:US_patent
|
gptkbp:application |
gptkb:US279972A
|
gptkbp:assignee |
gptkb:Thomas_A._Edison
|
gptkbp:country |
gptkb:United_States
|
gptkbp:date |
1883-07-10
|
gptkbp:filingDate |
1883-06-26
|
https://www.w3.org/2000/01/rdf-schema#label |
US279972A
|
gptkbp:inventedBy |
gptkb:Thomas_A._Edison
|
gptkbp:status |
Expired
|
gptkbp:title |
Improvement in telegraphy
|
gptkbp:bfsParent |
gptkb:US2261059A
|
gptkbp:bfsLayer |
8
|