| Patents Granted on 1875-03-30 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 161,352 | Mar. 30, 1875 | D.C. Prescott | Improvement in saw-mills | reciprocating sawmills |
| 161,384 | Mar. 30, 1875 | W.B. Carpenter | Improvement in centering devices for wood-turning lathes | wood lathes |
| 161,390 | Mar. 30, 1875 | A. Cummings | Improvement in wood-screws | |
| 161,392 | Mar. 30, 1875 | A.H. Dodd | Protractor | protractors |
| 161,444 | Mar. 30, 1875 | J. Ross | Planing and matching machine | wood planers |
| 161,447 | Mar. 30, 1875 | F. Schwamb | Improvement in cutter-heads | cutterheads |
| 161,454 | Mar. 30, 1875 | J. Taggart | Air and Gas Engines | gas and gasoline engines |
| 161,516 | Mar. 30, 1875 | W. Johnstone | Improvement in Bench Planes | plane cutter adjustments |
| 161,581 | Mar. 30, 1875 | L.H. Watson | Forge-Blower | forge blowers |
| 161,583 | Mar. 30, 1875 | G.S. Williams | Improvement in jig-saws | scrollsaws |
| 161,585 | Mar. 30, 1875 | G.S. Young | Improvement in scroll-sawing machines | scrollsaws |
