| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 55/DIG.20 | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| 5,422 | Feb. 01, 1848 | J.S. Lafitte | Spark Arrester | ||
| 218,643 | Aug. 19, 1879 | M. Rumely | Spark-Arrester | ||
| 663,148 | Dec. 04, 1900 | G.F. Conner | Spark Arrester and Extinguisher | ||
| 764,658 | Jul. 12, 1904 | H.C. Clay | Spark Arresting Smoke Stack | ||
| 872,072 | Nov. 26, 1907 | F.J. Lyman | Spark Destroyer for Smoke Stacks | ||
| 880,385 | Feb. 25, 1908 | W.F. MacGregor | Spark Arrester | ||