| Patents for Oratus S. French |
Patents 1 -
6
of 6
      |
| Picture | Number | Date | Patentee | Title |
 | 167,738 | Sep. 14, 1875 | O.S. French, D. June, R. Brayton | Spark-Arrester |
 | 190,275 | Mar. 03, 1877 | O.S. French, D. June, R. Brayton | Improvement in Spark-Arresters |
 | CA-7,735 | Aug. 09, 1877 | O.S. French, D. June, R. Brayton | Spark arrester |
| | CA-9,206 | Sep. 24, 1878 | R. Brayton, D. June, O.S. French | Procede pour Endure les Bouilleurs des Chadieres |
| | 668,914 | Feb. 26, 1901 | O.S. French | Power Transmitting and Reversing Gear |
| | 824,004 | Jun. 19, 1906 | O.S. French | Spark-Arrester |
