| All Patents in class 235/103 |
Patents 16 -
29
of 29
      |
| Number | Date | Patentee | Title | Type |
| 520,792 | Jun. 05, 1894 | W.T. Lintner | Bearing for Speed Indicators | measurement gauges |
| 527,207 | Oct. 09, 1894 | W. Lang | Speed Measure for Shafting | measurement gauges |
| 527,557 | Oct. 16, 1894 | W.T. Lintner | Speed Indicator for Shafting | measurement gauges |
| 557,446 | Mar. 31, 1896 | L.S. Starrett | Speed Measure | measurement gauges |
| 580,432 | Apr. 13, 1897 | L.S. Starrett | Speed Indicator | wheel-based measurers |
| 601,800 | Apr. 05, 1898 | L.S. Starrett | Speed Indicator | measurement gauges |
| 650,465 | May 29, 1900 | H. Hubbell | Speed Indicator | measurement gauges |
| 786,073 | Mar. 28, 1905 | S.P. Walsh | Speed Indicator | wheel-based measurers |
| 870,203 | Nov. 05, 1907 | C.W. Sponsel | Speed-Indicator | wheel-based measurers |
| 951,491 | Mar. 08, 1910 | F. Spaulding | Speed Indicator | measurement gauges |
| 1,172,793 | Feb. 22, 1916 | O.D. Hapgood | Revolution Counter | measurement gauges |
| 1,437,353 | Nov. 28, 1922 | J.W. Parker | Revolution counter | rpm speed gauges and tachometers |
| 3,048,832 | Aug. 07, 1962 | A.O. Fitzner | Position Indicating Means for Machine Tools | machine tool controls |
| 3,271,564 | Sep. 06, 1966 | R.G. Moyer, M.A. Rosenfield | Digital Measuring Apparatus | measurement gauges |
