Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Patent
|
| gptkbp:hasDescription |
A method for improving the quality of paper.
|
| gptkbp:hasFilingDate |
1879-12-15
|
| gptkbp:hasInternationalClassification |
D21H 19/00
|
| gptkbp:hasInventor |
gptkb:William_H._H._Houghton
|
| gptkbp:hasPatentNumber |
0210987
|
| gptkbp:hasPriorityDate |
1879-12-30
|
| gptkbp:hasTitle |
Improvement in the Art of Making and Using a Certain Kind of Paper
|
| https://www.w3.org/2000/01/rdf-schema#label |
US Patent 0,210,987
|
| gptkbp:isFiledIn |
gptkb:United_States
|
| gptkbp:isRelatedTo |
Paper manufacturing
|