| Patents Granted on 1891-04-28 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 451,022 | Apr. 28, 1891 | J.H. Brown | Wrench | quick adjust wrenches |
| 451,023 | Apr. 28, 1891 | J.H. Brown | Wrench | screw adjust wrenches |
| 451,024 | Apr. 28, 1891 | A.B. Chadwick | Wrench | alligator wrenches |
| 451,047 | Apr. 28, 1891 | H.J. Hartig | Governor for Engines | internal combustion engine governors |
| 451,053 | Apr. 28, 1891 | D.H. Jackman | Tire Gage | special purpose gauges |
| 451,067 | Apr. 28, 1891 | J. Noxon | Seeding-machine | |
| 451,092 | Apr. 28, 1891 | J. Walker | Boring Attachment for Lathes | lathe tools |
| 451,106 | Apr. 28, 1891 | C.E. Cleveland | Band-saw mill | band sawmills |
| 451,123 | Apr. 28, 1891 | C.M. Grannis | Machinists Gage & Gage Holder | special purpose gauges |
| 451,133 | Apr. 28, 1891 | J. Pleukharp | Machine for jointing staves | cooper |
| 451,162 | Apr. 28, 1891 | P. Payette | Edging-machine | circular ripsaws |
| 451,183 | Apr. 28, 1891 | G.F. Hall | Wrench | quick adjust wrenches |
| 451,184 | Apr. 28, 1891 | F.B. Manville | Machine for turning keys for gas-cocks | |
| 451,228 | Apr. 28, 1891 | W.W. Trevor | Machine for Splitting Wood | wood splitting machines |
| 451,283 | Apr. 28, 1891 | G.L. Webb | Wrench | screw adjust wrenches |
