| Patents Granted on 1872-02-13 |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| CA-1,381 | Feb. 13, 1872 | E. Gregg | Composition for anti-friction metal | industrial machine bearings |
| RE4,753 | Feb. 13, 1872 | R.C. Parvin | Improvements in Traction Engines | traction engine tracks |
| RE4,754 | Feb. 13, 1872 | S.L. Abbott | Improvement in Countersinks | countersinks |
| 123,546 | Feb. 13, 1872 | H.G. Ashton | Improvement in Lock Safety-Valves for Steam-Boilers | steam safety valves |
| 123,554 | Feb. 13, 1872 | L. Chapman | Improvment in the Manufacture of Wrench-Heads | tool making machines |
| 123,561 | Feb. 13, 1872 | T.S. Greenman, C.A. Fenner | Improvement in scroll-saws | scrollsaws |
| 123,562 | Feb. 13, 1872 | J.P. Grosvenor | Improvement in lubricating-boxes and bearings for upright shafts | woodworking machine lubrication |
| 123,563 | Feb. 13, 1872 | A.F. Gue | Improvement in machines for tenoning spokes | wheelwright |
| 123,580 | Feb. 13, 1872 | J. Russell | Improvement in Corn Husker Rollers | corn huskers |
| 123,586 | Feb. 13, 1872 | S. Weymouth, H.F. Snyder | Improvement in saw-mills | reciprocating sawmills |
| 123,604 | Feb. 13, 1872 | B.F. Allen | Improvement in Cutting Tools | milling machine tools |
| 123,614 | Feb. 13, 1872 | T.C. Churchman | Improvement in horse-powers | animal powered apparatus |
| 123,624 | Feb. 13, 1872 | J.A. Evarts | Improvement in tape-measures | tape measure mechanisms |
| 123,638 | Feb. 13, 1872 | C. Neil | Improvement in Screw Wrenches | screw adjust wrenches |
| 123,652 | Feb. 13, 1872 | A. Weed | Improvement in tool-handles | files |
