| Patents Granted on 1888-05-22 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 383,103 | May 22, 1888 | F.W. Cook | Inserted saw-tooth | insertable saw teeth |
| 383,111 | May 22, 1888 | J. Duffy | Tube Expander | boiler repair tools |
| 383,112 | May 22, 1888 | G.B. Durkee | Power-feed sawing-machine | circular ripsaws |
| 383,142 | May 22, 1888 | C. Nobs | Apparatus for Tapering Metallic Blanks | forging dies |
| 383,148 | May 22, 1888 | P. Robideau | Machine for cutting box-sections | box making machines |
| 383,165 | May 22, 1888 | N.W. Vandegrift, F. Armstrong | Bench Vise | bench vises |
| 383,179 | May 22, 1888 | D.B. James | Traction Engine | traction engine propulsion components |
| 383,191 | May 22, 1888 | N. Romer, J.P. Romer | Saw-gummer | saw gummers |
| 383,196 | May 22, 1888 | C.M. Stratton, E.A. Stratton | Spirit Level | levels |
| 383,210 | May 22, 1888 | S.A. Brumbaugh | Automatic Feed for Boring Bars | boring bars |
| 383,225 | May 22, 1888 | A.G. Hohenstein | Pressure-regulator | steam valves |
| 383,226 | May 22, 1888 | A.G. Hohenstein | Automatic pressure-regulator and safety-valve | steam valves |
| 383,246 | May 22, 1888 | G. Philion | Upright-saw machine | bandsaw accessories |
| 383,281 | May 22, 1888 | W.H. Dodge | Means for securing pulleys on shafts | industrial machine pulleys and belt drive mechanisms |
| 383,285 | May 22, 1888 | E.C. Engelberg | Rice-hulling machine | |
