| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Harper Twelvetree | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| GB-186,203,226 | Dec. 02, 1862 | H. Twelvetree | An improved sawing, filing, mortising and turning apparatus | mortising machines | |