| Patents Granted on 1881-07-12 |
Patents 1 -
15
of 17
      |
| Number | Date | Patentee | Title | Type |
| RE9,803 | Jul. 12, 1881 | H.R. Heyl | Device for inserting metallic staples | staplers |
| 244,041 | Jul. 12, 1881 | R. Eickemeyer | Machine for blocking and shaping hats | hat making |
| 244,094 | Jul. 12, 1881 | J.W. Thompson | Cylinder for steam-engine indicators | steam engine indicators |
| 244,097 | Jul. 12, 1881 | C.S. Tilton | Machine for manufacturing carriage-wheel hubs | wood lathes |
| 244,117 | Jul. 12, 1881 | A.H. Elfers | Steam Wagon | steam road engines |
| 244,126 | Jul. 12, 1881 | W.D. Herschel | Friction-pulley | industrial machine pulleys and belt drive mechanisms |
| 244,134 | Jul. 12, 1881 | I. Lepley | Timber-framing machine | tenoning machines |
| 244,154 | Jul. 12, 1881 | F.L. Wilson | Veneer-cutting machine | veneer machines |
| 244,155 | Jul. 12, 1881 | F.L. Wilson | Hoop-cutting machine | hoop making machines |
| 244,158 | Jul. 12, 1881 | G.W. Amesbury | Device for sharpening band-saws | saw sharpening machines |
| 244,240 | Jul. 12, 1881 | W.H. Howland | Ore-amalgamator | ore processing apparatus |
| 244,250 | Jul. 12, 1881 | W.W. Jones | Machine for making rims for metal vessels | sheet metal flanging machines |
| 244,269 | Jul. 12, 1881 | C.H. Lovrien | Pipe Tongs | pipe tongs |
| 244,278 | Jul. 12, 1881 | W. McAdams, Jr. | Drag-sawing machine | drag saws |
| 244,290 | Jul. 12, 1881 | J.C. Pennington, E.J. Pennington | Reciprocating cylinder-head for planing-machines | wood planers |
