| Patents Granted on 1877-03-27 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| RE7,573 | Mar. 27, 1877 | H.A. Harvey | Machine for Threading Wood Screws | |
| 188,756 | Mar. 27, 1877 | F.A. Rich | Gaging & Centering Tool | special purpose gauges |
| 188,771 | Mar. 27, 1877 | M.T. Boult | Improvement in cutter-heads | cutterheads |
| 188,773 | Mar. 27, 1877 | M. Bray | Improvement in machines for drilling the shanks of rivets | rivet making machines |
| 188,787 | Mar. 27, 1877 | W.H. Ewing | Improvement in machines for setting up barrels | barrel making machines |
| 188,803 | Mar. 27, 1877 | F. Kuhlman | Barel Gage | barrel calipers |
| 188,829 | Mar. 27, 1877 | G. Thompson | Improvement in machines for sawing hoop-poles | hoop making machines |
| 188,866 | Mar. 27, 1877 | N.M. Davison | Portable and Traction Engine | steam traction engines |
| 188,880 | Mar. 27, 1877 | W.H. Ewing | Improvement in machines for setting up barrels | barrel making machines |
| 188,936 | Mar. 27, 1877 | G.E. Newall | Improvement in pressure-bars for planing-machines | wood planers |
| 188,939 | Mar. 27, 1877 | J.A. Peoples | Improvement in machines for splitting hoop-poles | hoop making machines |
| 188,968 | Mar. 27, 1877 | J. Shepard | Wrench | screw adjust wrenches |
| 188,978 | Mar. 27, 1877 | R.H. St. John | Adjustable Tap Wrench | tap wrenches and die stocks |
