| All Patents in class 451/297 |
Patents 16 -
30
of 37
      |
| Number | Date | Patentee | Title | Type |
| 2,449,519 | Sep. 14, 1948 | D.E. Sutton | Belt tightening and tracking device | belt sanders |
| 2,463,287 | Mar. 01, 1949 | E.C. Krueger | Grinding or polishing machine | belt sanders |
| 2,565,223 | Aug. 21, 1951 | M.B. Gentzel | Belt tightening and aligning mechanism for abrading devices | handheld power sanders |
| 2,686,392 | Aug. 17, 1954 | F.W. Moore | Belt sander | handheld power sanders |
| 2,706,367 | Apr. 19, 1955 | D.W. McCarthy | Adjustment means for idler pulley | belt sanders |
| 2,742,741 | Apr. 24, 1956 | L. Frostad | Tracking mechanism for belt sander | handheld power sanders |
| 2,757,490 | Aug. 07, 1956 | H. Whitesell, M. Matheu | Band type metal finishing and grinding machines, and the like | belt sanders |
| 2,804,726 | Sep. 03, 1957 | G.W. Johnson | Backstand idler | polishing machines |
| 2,835,083 | May 20, 1958 | L.G. Brown, G. De Mambro | Belt sanding machine | belt sanders |
| 3,153,306 | Oct. 20, 1964 | P.J. Robischung | Belt abrader | |
| 3,209,495 | Oct. 05, 1965 | P.J. Robischung | Belt abrader | |
| 3,209,496 | Oct. 05, 1965 | P.J. Robischung | Belt abrader adjustment mechanism | |
| 3,406,487 | Oct. 22, 1968 | A. Pollak | Belt sanders | sanding machines |
| 3,429,077 | Feb. 25, 1969 | L.V. Grover | Sander | belt sanders |
| 3,447,306 | Jun. 03, 1969 | J. Zigmant | Abrading machine | |
