Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:application |
US 748,421
|
| gptkbp:assignee |
gptkb:Polaroid_Corporation
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:date |
1938-06-21
|
| gptkbp:fieldOfInvention |
photography
|
| gptkbp:filingDate |
1934-10-16
|
| https://www.w3.org/2000/01/rdf-schema#label |
US Patent 2,121,054
|
| gptkbp:inventedBy |
gptkb:Edwin_H._Land
|
| gptkbp:language |
English
|
| gptkbp:relatedTo |
polarizing filter
|
| gptkbp:title |
Method of making colored photographs
|
| gptkbp:bfsParent |
gptkb:Fred_Waller
|
| gptkbp:bfsLayer |
7
|