| Patents Granted on 1870-02-22 |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| RE3,850 | Feb. 22, 1870 | W.P. Letchworth | Machine for bending wood | wood bending machines |
| RE3,852 | Feb. 22, 1870 | L.E. Smith, L. Jordan | Improvement in Wrenches | wrench handle components |
| 100,004 | Feb. 22, 1870 | J.M. Beugler | Improvement in hanging crank-shafts | steam engines |
| 100,064 | Feb. 22, 1870 | F.A. Pratt | Improvement in friction-clutches | industrial machine clutches |
| 100,066 | Feb. 22, 1870 | W.B. Preston | Improvement in steelyards | scales and balances |
| 100,072 | Feb. 22, 1870 | W. Ritchie | Improvement in Instruments for Drawing Geometrical Lines | compasses |
| 100,089 | Feb. 22, 1870 | G. Walker | Improvement in Saw-Grinding Machine | tool making machines |
| 100,118 | Feb. 22, 1870 | M.W. Clark | Improved blind-slat | |
| 100,132 | Feb. 22, 1870 | H.H. Evarts | Improvement in the construction of chairs | chair maker |
| 100,133 | Feb. 22, 1870 | H.H. Evarts | Improved bedstead | |
| 100,164 | Feb. 22, 1870 | J.N. Lyman | Improvement in clamp for stay-log | clamps |
| 100,211 | Feb. 22, 1870 | B.F. Sturtevant | Heating and Ventilating Apparatus | furnaces |
| 100,212 | Feb. 22, 1870 | B.F. Sturtevant | Grain Dryer | grain dryers |
| 100,235 | Feb. 22, 1870 | B.F. Sturtevant | Grain Dryer | grain dryers |
| 100,236 | Feb. 22, 1870 | B.F. Sturtevant | Pressure Blower Wheel | blowers |
