Statements (9)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:assignee |
gptkb:Houghton_Manufacturing_Company
|
| gptkbp:classification |
B29C
|
| gptkbp:filingDate |
1919-01-15
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 1357951 H4
|
| gptkbp:inventor |
gptkb:William_H._H._Houghton
|
| gptkbp:issueDate |
1920-10-19
|
| gptkbp:patentNumber |
1357951
|
| gptkbp:title |
Method of and apparatus for making a tubular article
|