Statements (5)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:description |
unknown invention
|
| gptkbp:filedIn |
unknown
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 1597532 A
|
| gptkbp:issuedBy |
unknown
|