Statements (4)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| https://www.w3.org/2000/01/rdf-schema#label |
US Patent 4750
|
| gptkbp:bfsParent |
gptkb:Elias_Howe
|
| gptkbp:bfsLayer |
6
|