Statements (14)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:US_patent
|
gptkbp:assignee |
gptkb:Nikola_Tesla
|
gptkbp:country |
gptkb:United_States
|
gptkbp:fieldOfInvention |
telegraphy
|
gptkbp:filingDate |
1897-09-02
|
https://www.w3.org/2000/01/rdf-schema#label |
US617028A
|
gptkbp:inventedBy |
gptkb:Nikola_Tesla
|
gptkbp:language |
English
|
gptkbp:patent |
617028
|
gptkbp:publicationDate |
1899-03-21
|
gptkbp:status |
expired
|
gptkbp:title |
Improvement in telegraphy
|
gptkbp:bfsParent |
gptkb:US2948069A
|
gptkbp:bfsLayer |
7
|