| All Patents in class 83/469 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 1,457 | Dec. 31, 1839 | M. Andrews, J. Sproat | Manner of relieving the collars of circular saws from the friction occasioned by the article sawed | circular saws |
| 11,282 | Jul. 11, 1854 | W. McKinstry | Adjustable bearing for circular saws | circular sawmills |
| 12,705 | Apr. 10, 1855 | H. Wells | Device allowing circular-saw spindles to yield | circular sawmills |
| 14,480 | Mar. 18, 1856 | H. Wells | Method of suspending circular-saw spindles | circular sawmills |
| 25,996 | Nov. 01, 1859 | J. Colville | Method of adjusting circular saws | circular saws |
| 146,648 | Jan. 20, 1874 | G.W. Bugbee | Improvement in saw-mandrels | circular saws |
| 215,050 | May 06, 1879 | T.N. Egery | Improvement in saw-mandrels | circular saws |
| 262,551 | Aug. 08, 1882 | G.H. Zschech | Bearing for circular-saw shafts | circular sawmills |
| 288,173 | Nov. 06, 1883 | G. Gowan | Circular sawing machine | circular saws |
| 288,589 | Nov. 13, 1883 | D.J. Murray | Swinging bridge for saw-arbors | circular saws |
| 342,876 | Jun. 01, 1886 | W.F. Parish | Saw-guide | circular saw accessories |
| 779,516 | Jan. 10, 1905 | J. Armstrong | Process of Cuttting Self Hardening Steel | |
