Properties (9)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:applicationNumber |
gptkb:US_2,500,022
|
| gptkbp:classification |
H04B
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 2,500,022
|
| gptkbp:inventor |
unknown
|
| gptkbp:issuedBy |
unknown
|
| gptkbp:issuedOn |
1950-09-12
|
| gptkbp:status |
expired
|
| gptkbp:title |
Method of and apparatus for producing a high frequency signal
|