| Patents Granted on 1873-04-__ |
Patents 1 -
15
of 74
      |
| Number | Date | Patentee | Title | Type |
| 137,284 | Apr. 01, 1873 | E. Benjamin | Improvement in sawing-machines | clapboard machines |
| 137,298 | Apr. 01, 1873 | F. Ferrin | Carriers for Lathes | metal lathe accessories and attachments |
| 137,302 | Apr. 01, 1873 | D. Green | Woodworker's Leg Vise | leg vises |
| 137,310 | Apr. 01, 1873 | P.E. McIntosh | Double-Action Wrench | ratchet wrenches |
| 137,315 | Apr. 01, 1873 | W.F. Moody | Improvement in dovetailing machines | dovetailing machines |
| 137,329 | Apr. 01, 1873 | H.D. Spickler | Improvement in Wood Scrapers | spokeshaves |
| 137,373 | Apr. 01, 1873 | F. Jonas | Adjustable Countersink Bit-Assembly | countersinks |
| 137,384 | Apr. 01, 1873 | A.G. Parkhurst | Improvement in machines for cutting hoops | hoop making machines |
| 137,407 | Apr. 01, 1873 | W.B. Bement | Feeding Devices for Punching Machines | punch presses |
| 137,432 | Apr. 01, 1873 | B. Gallagher | Improvement in ratchet-drills | ratchet drills |
| 137,489 | Apr. 01, 1873 | J.N. Seib | Improvement in veneer-cutters | veneer machines |
| CA-2,233 | Apr. 08, 1873 | G.H. Copping | Lozenge machine | |
| CA-2,239 | Apr. 08, 1873 | I. Fréchette | Improvement in shingle mill | shingle machines |
| 137,581 | Apr. 08, 1873 | S. Wheeler | Improvement in sawing-machines | drag saws |
| 137,583 | Apr. 08, 1873 | B.D. Whitney | Improvement in band sawing-machines | bandsaw guides |
