| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 277/483 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 74,750 | Feb. 25, 1868 | S.E. Chubbuck, I.Y. Chubbuck | Improvement in pistons | steam engine pistons | |
| 123,971 | Feb. 27, 1872 | G.R. Babbitt | Improvement in Piston Packing | piston ring and packing | |
| 136,405 | Mar. 04, 1873 | G.R. Babbitt, W.A. Harris | Improvement in piston-packings | piston ring and packing | |