| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 172/423 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 79,639 | Jul. 07, 1868 | G.A. Davison | Wheel Plow | plows | |
| 168,762 | Oct. 11, 1875 | L.H. McGinnes | Harrow | harrows | |
| 2,090,324 | Aug. 17, 1937 | J. Boisvert | Road grader attachment | graders and dozers | |