| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 123/81D | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| 556,195 | Mar. 10, 1896 | F.W. Mellars | Gas or Vapor Engine | ||
 | 1,452,995 | Apr. 24, 1923 | M.A. Yeakley | Valve-operating connection | |