| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Roy G. Mumma | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 1,391,639 | Sep. 20, 1921 | V.R. Koontz | Collapsible tap | |
 | 1,394,845 | Oct. 25, 1921 | V.R. Koontz | Die-head | |
 | 1,456,805 | May 29, 1923 | V.R. Koontz | Die head | |