Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:application |
457,123
|
| gptkbp:assignee |
nan
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:date |
1945-06-12
|
| gptkbp:fieldOfInvention |
magnetic recording
|
| gptkbp:filingDate |
1942-10-14
|
| https://www.w3.org/2000/01/rdf-schema#label |
US Patent 2,377,985
|
| gptkbp:inventedBy |
gptkb:Valdemar_Poulsen
|
| gptkbp:language |
English
|
| gptkbp:title |
gptkb:Magnetic_Recording
|
| gptkbp:bfsParent |
gptkb:Lloyd_Hall
|
| gptkbp:bfsLayer |
7
|