| Patents for Z. C. Robbins |
Patents 16 -
22
of 22
      |
| Number | Date | Patentee | Title | Type |
| 12,449 | Feb. 27, 1855 | W. Steele | Tenoning-machine | tenoning machines |
| 13,307 | Jul. 24, 1855 | C.H. Guard | Machine for boring and mortising hubs | mortising machines |
| 18,161 | Sep. 08, 1857 | J.A. Scroggs | Mortising-chisel | mortise chisels |
| RE629 | Nov. 30, 1858 | H. Knowles | Improvement in saw-mills | reciprocating sawmills |
| 81,764 | Sep. 01, 1868 | I. Fisher | Improvement in Vises | bench vises |
| 90,689 | Jun. 01, 1869 | I.S. Roland | Improvement in spoke-lathes | wood lathes |
| 128,127 | Jun. 18, 1872 | R. Daniels | Improvement in axles for vehicles | |
