| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 91/308 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 803,621 | Nov. 07, 1905 | A.J. Patch | Pneumatic Hammer | pneumatic tools | |
| 2,296,647 | Dec. 15, 1936 | J.H. McCormick | Hydraulic Pressure Booster | hydraulic pump controls | |
| 3,464,315 | Sep. 02, 1969 | H.A. Weyer | Mechanical pneumatic servo control system for high-speed impact devices | drop hammers | |