Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:assignee |
gptkb:Thomas_Edison
|
| gptkbp:class |
G11B 3/00
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:date |
1898-12-20
|
| gptkbp:describes |
Improvements in phonograph or speaking machines
|
| gptkbp:filingDate |
1897-12-27
|
| gptkbp:inventedBy |
gptkb:Thomas_Edison
|
| gptkbp:language |
English
|
| gptkbp:patent |
616234
|
| gptkbp:title |
gptkb:Phonograph
|
| gptkbp:bfsParent |
gptkb:US_Patent_3991344
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
US 616,234
|