| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Harvey M. Allison | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| 1,835,687 | Dec. 08, 1931 | H.M. Allison | Backing-Off Mechanism for Grinding Machines | ||
| 1,835,733 | Dec. 08, 1931 | H.M. Allison, E.A. Walker | Backing Off Mechanism for Grinding Machines | ||
 | 1,854,242 | Apr. 19, 1932 | E.A. Walker, H.M. Allison | Machine for Measuring Taps | |
 | 1,854,244 | Apr. 19, 1932 | E.A. Walker, H.M. Allison | Machine for Measuring Two-Fluted Taps | |