| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Louis F. Polk | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,412,421 | Dec. 10, 1946 | W.F. Aller, L.F. Polk | Gauging Device | measurement gauges | |
| 2,436,528 | Feb. 24, 1948 | W.F. Aller, L.F. Polk | Screw Thread Gauge | thread gages | |