| Patents for Robb & Mitchell |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 195,650 | Sep. 25, 1877 | J.A. Robb | Improvement in saw-mill set-works | sawmills |
| 227,926 | May 25, 1880 | J.A. Robb | Lumber edger | circular ripsaws |
| 258,946 | Jun. 06, 1882 | J.A. Robb | Edger | circular ripsaws |
| 288,493 | Nov. 13, 1883 | J.A. Robb | Feed mechanism for lath-sawing machines | lath making machines |
| 290,358 | Dec. 18, 1883 | J.A. Robb | Edger | circular ripsaws |
| CA-18,809 | Mar. 06, 1884 | J.A. Robb | Edger | circular ripsaws |
| 313,531 | Mar. 10, 1885 | H.C. Robb | Saw-mill head-block | sawmill headblocks |
| 341,055 | May 04, 1886 | J.A. Robb | Saw-guide | circular saw accessories |
| 399,931 | Mar. 19, 1889 | H.C. Robb | Gang-edger | circular ripsaws |
| 401,516 | Apr. 16, 1889 | J.A. Robb | Chimney or stack propeller and governor | industrial furnaces |
