| All Patents in class 221/301 | 
| Patents 1 - 
					6
					of 6 
       | 
| Number | Date | Patentee | Title | Type | 
| 309,103 | Dec. 09, 1884 | F.F. Schofield | Log-loader | sawmill log handling | 
| 320,217 | Jun. 16, 1885 | J. Campbell | Log-loader | sawmill log handling | 
| 649,903 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | metal lathe accessories and attachments | 
| 699,120 | Apr. 29, 1902 | E.E. Thomas | Skid-arm for double-cutting band-mills | sawmill log handling | 
| 1,877,693 | Sep. 13, 1932 | C.A. Rich | Automatic Screw Machine | screw machines | 
| 2,043,772 | Jun. 09, 1936 | C.A. Rich | Machine for Fashioning Articles Successively from Bar Stock |  |