| Patents for Wallace J. Witwer |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 3,396,860 | Aug. 13, 1968 | W.J. Witwer, J.V. Wright | Excavator and grader or crane apparatus | excavators |
| 3,426,926 | Feb. 11, 1969 | W.J. Witwer | Hydraulic system for use with telescopic boom apparatus | |
| 3,451,560 | Jun. 24, 1969 | W.J. Witwer | Remote control system | |
| CA-821,931 | Sep. 02, 1969 | W.J. Witwer | Hydraulic system for use with telescopic boom apparatus | |
| CA-822,521 | Sep. 09, 1969 | W.J. Witwer, J.V. Wright | Excavator and grader or crane apparatus | excavators |
| 3,476,274 | Nov. 04, 1969 | W.J. Witwer | Backhoe hydraulic control system | |
| CA-851,502 | Sep. 15, 1970 | W.J. Witwer | Backhoe hydraulic control system | |
| 3,589,539 | Jun. 29, 1971 | W.J. Witwer | Backhoe having an articulated gooseneck boom | |
| CA-886,375 | Nov. 23, 1971 | W.J. Witwer | Remote control system | |
