| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Alexander S. Walbridge | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| XC-1,291 | Nov. 28, 1861 | A.S. Walbridge | An improved mode of operating variable expansion steam cut-off valves | ||