Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login |
Quick search: |
All Patents of Type: steam whistles | |||||
Number | Date | Patentee | Title | Type | |
186,718 | Jan. 30, 1877 | J. Einig | Improvement in steam-whistle | steam whistles | |
471,171 | Mar. 22, 1892 | H.R. Frisbie | Steam Whistle | steam whistles | |
520,418 | May 29, 1894 | H.R. Frisbie | Steam Chime Whistle | steam whistles | |
787,422 | Apr. 18, 1905 | F.L. Wolfe | Whistle Valve | steam valves | |
1,890,212 | Dec. 06, 1932 | A.L. Bridgham | Whistle and the like | steam whistles |