| All Patents in class 235/103 |
Patents 1 -
15
of 29
      |
| Number | Date | Patentee | Title | Type |
| 80,612 | Aug. 04, 1868 | J.S. Detrick | Counting Register | |
| 182,177 | Sep. 12, 1876 | E. Wright, D. Davis, Jr. | Rotary Measure | rpm speed gauges and tachometers |
| 194,548 | Aug. 28, 1877 | W. Churchill | Speed Indicator for Shafting | measurement gauges |
| 264,900 | Sep. 26, 1882 | W.G. Richards | Speed Indicator | measurement gauges |
| 268,107 | Nov. 28, 1882 | W. Lang | Speed Indicator | measurement gauges |
| 282,067 | Jul. 31, 1883 | C.H. Fowler | Speed Indicator | measurement gauges |
| 299,677 | Jun. 03, 1884 | R.J. Pratt | Speed Indicator | measurement gauges |
| 325,991 | Sep. 08, 1885 | H. Tabor | Speed Indicator | wheel-based measurers |
| 387,481 | Aug. 07, 1888 | G. Almorth | Protractor | protractors |
| 397,395 | Feb. 05, 1889 | E.C. Smith | Speed Indicator | measurement gauges |
| 418,608 | Dec. 31, 1889 | C.H. Fowler | Speed Indicator | measurement gauges |
| 483,846 | Oct. 04, 1892 | O. Knapp | Speed Measure | |
| 486,651 | Nov. 22, 1892 | L.T. Weiss | Speed Indicator | wheel-based measurers |
| 505,582 | Sep. 26, 1893 | L.T. Weiss | Speed Measure | measurement gauges |
| 508,686 | Nov. 14, 1893 | W.F. Dial | Speed Indicator for Shafting | measurement gauges |
