| Patents Granted on 1878-04-02 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| RE8,150 | Apr. 02, 1878 | W. Lamb | Improvement in log-carriages for saw-mills | sawmill carriages |
| 201,862 | Apr. 02, 1878 | H.G. Ashton | Improvement in Exhaust Mechanisms for Locomotives and Other Steam-Engines | steam safety valves |
| 201,875 | Apr. 02, 1878 | J.C. Estey | Utilizing Power of Water Pipes | turbine water wheels |
| 201,908 | Apr. 02, 1878 | A.E. Brockett | Bung Borer | tapered reamers |
| 201,920 | Apr. 02, 1878 | W.T. Gilliland | Coffee Roaster | coffee roasters |
| 201,932 | Apr. 02, 1878 | J. May | Gauge lathe | wood lathes |
| 201,938 | Apr. 02, 1878 | W.E. Nickerson | Improvement in cutters for reducing bark | bark processing machines |
| 201,948 | Apr. 02, 1878 | M. Rice | Cutting & boring lathe attachment | wood drilling and boring |
| 202,061 | Apr. 02, 1878 | H.L. Shaler | Improvement in Augers | auger bits |
| 202,073 | Apr. 02, 1878 | C.W. Thompson | Improvement in machines for making barrel-hoops | hoop making machines |
