| Patents for Sumner Iron Works |
Patents 16 -
26
of 26
      |
| Number | Date | Patentee | Title | Type |
| 2,765,198 | Oct. 02, 1956 | W.C. Briggs, M.F. Fish | Hydraulic barker | debarking machines |
| 2,778,342 | Jan. 22, 1957 | H.W. Ringman | Poppet type valve distributing system for a servo-motor | |
| 2,810,181 | Oct. 22, 1957 | K. Ruckstuhl | Extrusion press | |
| 2,838,248 | Jun. 10, 1958 | H.W. Ringman | Rechipper | wood grinding machines |
| 2,861,606 | Nov. 25, 1958 | M.F. Fish | Remote control set works | sawmill set works |
| RE24,665 | Jul. 07, 1959 | K. Ruckstuhl | Extrusion press | |
| 2,922,590 | Jan. 26, 1960 | P.N. Bland | Chipper knife supporting means | |
| 2,944,741 | Jul. 12, 1960 | M.F. Fish | Hydraulic log barkers | debarking machines |
| 2,966,842 | Jan. 03, 1961 | J.B. Roche | Briquetting machines | |
| 2,984,173 | May 16, 1961 | W.C. Briggs, J.B. Roche | Extrusion die for briquetting machine | |
| 2,995,445 | Aug. 08, 1961 | W.C. Briggs, F.W. Hoover, Jr. | Method of producing a forage product | |
