Statements (9)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:abstract |
unknown
|
| gptkbp:applicationNumber |
unknown
|
| gptkbp:filedIn |
unknown
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 3,456,881
|
| gptkbp:issuedBy |
unknown
July 15, 1969 |
| gptkbp:status |
unknown
|
| gptkbp:title |
unknown
|