| Patents for Frank D. Ober |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 652,441 | Jun. 26, 1900 | E.J. McClellan | Milling Machine Vice | milling machine accessories |
| 655,157 | Jul. 31, 1900 | E.J. McClellan | Belt Tightener | metalworking machine mechanisms |
| 686,726 | Nov. 19, 1901 | A. Langley, E.M. Griffiths | Backing-Off Mechanism for Lathes | backing off attachments |
| 800,470 | Sep. 26, 1905 | E.J. McClellan | Milling Machine | milling machines |
| 922,880 | May 25, 1909 | E.J. McClellan, G.K. Garvin | Speed Change Gearing | metalworking speed changing mechanisms |
