| All Patents in class 277 |
Patents 16 -
30
of 165
      |
| Number | Date | Patentee | Title | Type |
| 159,675 | Feb. 09, 1875 | J.W. Hill | Improvement in piston-packings | piston ring and packing |
| 203,553 | May 14, 1878 | T. Northey | Improvement in double stuffing-boxes for steam-pumps | steam pumps |
| 213,301 | Mar. 18, 1879 | L. Saylor | Piston-Rod Packing | steam engine packing |
| 225,555 | Mar. 16, 1880 | E.M. Birdsall | Piston for Steam Engines | steam engines |
| 238,935 | Mar. 15, 1881 | W.J. Liddell | Piston-packing | piston ring and packing |
| 276,060 | Apr. 17, 1883 | E. Medden | Packing for journals | pump bearings |
| 359,869 | Mar. 22, 1887 | R. Ruddy, L. Kaczander | Stuffing Box for Steam Engines | steam engine stuffing boxes |
| 403,408 | May 14, 1889 | C.E. Baker, T.J. Baker | Combined Wrench and Piston Lubricator | wrenches |
| 407,370 | Jul. 23, 1889 | E.F. Peacock | Piston Packing | piston ring and packing |
| 407,533 | Jul. 23, 1889 | F.G. Kellogg | Piston Rod Packing | piston ring and packing |
| 454,093 | Jun. 16, 1891 | R. Ryan, S. Udstad | Rod Packing | steam engine packing |
| 471,185 | Mar. 22, 1892 | C.L. Anderson, S.H. Mosher | Metallic Packing | steam engine packing |
| 473,554 | Apr. 26, 1892 | E.P. Holly | Valve-Packing Device | plumber |
| 490,107 | Jan. 17, 1893 | R.G. Ferguson | Packing | auxiliary wrenches |
| 525,443 | Sep. 04, 1894 | P.W. Gates, E.E. Hanna, C.L. Carman | Gyrating crusher | ore processing apparatus |
