| Patents Granted on 1875-04-20 |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| CA-4,656 | Apr. 20, 1875 | S. Rydbeck | Hand-powered timber mortiser | portable timber mortisers |
| 162,138 | Apr. 20, 1875 | S.R. Bailey | Improvement in bending wood | wood bending machines |
| 162,147 | Apr. 20, 1875 | W.W. Bostwick | Improvement in jelly-presses | meat or fruit press |
| 162,194 | Apr. 20, 1875 | E. Schlenker | Improvement in bolt-threading machines | metal threading machines |
| 162,229 | Apr. 20, 1875 | F. Goulet | Improvement in gage-lathes for turning wood | wood lathes |
| 162,230 | Apr. 20, 1875 | H.S. Smith, E.J. Granger | Improvement in barrel-head adjusters | barrel making machines |
| 162,231 | Apr. 20, 1875 | E.J. Granger | Improvement in barrel-stave adjusters | barrel making machines |
| 162,260 | Apr. 20, 1875 | N.H. Whitten | Improvement in operating paper-calendering rolls | |
| 162,271 | Apr. 20, 1875 | E.R. Charles | Bit-stock | brace chucks |
| 162,274 | Apr. 20, 1875 | M.D. Converse | Improvement in Nail Extractors | nail extractors |
| 162,279 | Apr. 20, 1875 | C.M. Fairbanks | Improvement in circular-saw mills | circular sawmills |
| 162,281 | Apr. 20, 1875 | D.A. Fisher, Jr. | Improvement in Joiners Clamps | |
| 162,317 | Apr. 20, 1875 | H.R. Sloat | Improved Monkey-Wrench | wrench handle components |
| 162,319 | Apr. 20, 1875 | E. Smith | Improvement in insertable saw-teeth | insertable saw teeth |
| 162,343 | Apr. 20, 1875 | J.H. Blaisdell | Improvement in molding-machines | molders |
