Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:assignee |
gptkb:Thomas_A._Edison
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:date |
1874-09-29
|
| gptkbp:describes |
An improvement in telegraphy, specifically in automatic telegraph apparatus.
|
| gptkbp:filingDate |
1874-09-29
|
| https://www.w3.org/2000/01/rdf-schema#label |
US154563A
|
| gptkbp:inventedBy |
gptkb:Thomas_A._Edison
|
| gptkbp:patent |
154563
|
| gptkbp:title |
Improvement in telegraphy
|
| gptkbp:bfsParent |
gptkb:US2151091A
|
| gptkbp:bfsLayer |
7
|