| All Patents of Type: cranes |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 285,100 | Sep. 18, 1883 | H.M. Barnhart, E. Huber | Traveling crane | cranes |
| 325,309 | Sep. 01, 1885 | H.M. Barnhart, E. Huber | Device for loading and unloading cars | cranes |
| 1,422,459 | Jul. 11, 1922 | R.E. Manley | Portable floor crane | cranes |
| 1,576,702 | Mar. 16, 1926 | F. Ackerman | Electrically Operated Bridge Crane | cranes |
| 3,396,860 | Aug. 13, 1968 | W.J. Witwer, J.V. Wright | Excavator and grader or crane apparatus | excavators |
| CA-822,521 | Sep. 09, 1969 | W.J. Witwer, J.V. Wright | Excavator and grader or crane apparatus | excavators |
