| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 346/62 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 265,198 | Sep. 26, 1882 | J.B. Webb | Diagram Instrument for Engines | steam engine indicators | |
| 1,404,770 | Jan. 31, 1922 | F.H. Hopkins | Air Brake Recording Apparatus | industrial recording apparatus | |
| 1,655,615 | Jan. 10, 1928 | P. Kreisel | Recording and Timing Device for Combustion Engines | internal combustion engine indicators | |