| Patents Granted on 1880-07-20 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| RE9,303 | Jul. 20, 1880 | J.F. Allen | Balanced valve | steam engine valves |
| RE9,309 | Jul. 20, 1880 | E.J. Sumner | Lumber-drier | |
| RE9,310 | Jul. 20, 1880 | J.S. Birch | Improvement in an Adjustable Holding Device and Watch-Key | self-adjust wrenches |
| 230,110 | Jul. 20, 1880 | A. Cunningham | Clapboard-machine | clapboard machines |
| 230,111 | Jul. 20, 1880 | A. Cunningham | Clapboard-machine | clapboard machines |
| 230,112 | Jul. 20, 1880 | A. Cunningham | Clapboard-machine | clapboard machines |
| 230,127 | Jul. 20, 1880 | W. Goodwin | Carpenter's Gage | marking gauges |
| 230,129 | Jul. 20, 1880 | W. Hill | Ticket Punch | pliers |
| 230,158 | Jul. 20, 1880 | R.H. Thurston | Machine for testing lubricants | testing machines |
| 230,164 | Jul. 20, 1880 | D. Almond | Fur-mixer or deviling-machine | hat making machines |
| 230,175 | Jul. 20, 1880 | C. Bryant | Circular sawing machine | tablesaws |
| 230,180 | Jul. 20, 1880 | J.H. Dorgan | Horseshoe Machine | horseshoe making machines |
| 230,189 | Jul. 20, 1880 | W. Langner | Coffee Roaster | coffee roasters |
| 230,253 | Jul. 20, 1880 | H. Düdeck | Engine Lathe | engine lathes |
| 230,270 | Jul. 20, 1880 | J.H. Coleman, J.M. Hall | Attachment for a Wrench | axle nut wrenches that lock nut to wheel hub |
