| Patents for Ottawa Iron Works |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 17,829 | Jul. 21, 1857 | W.M. Ferry, Jr. | Circular sawmill |
 | 20,150 | May 04, 1858 | W.M. Ferry, Jr. | Device for governing lateral motion of carriages in gigging back in circular sawing machines |
 | 26,262 | Nov. 29, 1859 | W.M. Ferry, Jr. | Journal-box for sawmill-carriages |
 | 32,418 | May 28, 1861 | W.M. Ferry, Jr. | Sawmill |
 | 95,889 | Oct. 19, 1869 | W.H. Ferry | Improvement in circular-saw mills |
 | 113,865 | Apr. 18, 1871 | W.M. Ferry | Improvement in saw-mills |
 | 113,866 | Apr. 18, 1871 | W.M. Ferry | Improvement in saw-mills |
 | 132,086 | Oct. 08, 1872 | W. Lamb | Improvement in log-carriages for sawmills |
 | 139,142 | May 20, 1873 | W.M. Ferry, O.H. Gronberg | Improvement in edging-machines |
 | 158,693 | Jan. 12, 1875 | W.M. Ferry | Improvement in saw-mill dogs |
