| All Patents in class 73/117.3 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 4,441,021 | Apr. 03, 1984 | T.P. Becker, C.B. Stout, D.D. Grover, J.A. Thompson, G.E. Olson | Luminosity Probe for Diesel Engine Timing Apparatus | |
| 4,484,469 | Nov. 27, 1984 | R.H. Mueller, D.D. Grover | Luminosity Probe with Positively Retained Light Pipe | |
| 4,493,208 | Jan. 15, 1985 | D.D. Grover | Dual Engine Probe | |
| 5,258,753 | Nov. 02, 1993 | J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker, C.F. Govekar, G.D. Jonker | Digital Engine Analyzer | |
| 5,296,869 | Mar. 22, 1994 | J.C. Sniegowski, M.C. Putrow, J.R. Piehl, M.B. Meeker, C.F. Govekar, G.D. Jonker | Digital Engine Analyzer | |
| 5,610,327 | Mar. 11, 1997 | M.M. Crass, M.A. Hoferitza, T.P. Becker | Knock Sensor-Triggered Timing Light with Visible Laser Retro-Reflecting Control | |
| 5,680,311 | Oct. 21, 1997 | Y.M. Taraki, D.A. Trsar | Long Term Firing and Spark Display | |
