| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 73/86 | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 2,470,498 | May 17, 1949 | H.Y. Lankford | Device for Measuring the Thickness of Walls or the Like, Subject to Erosion | |
| 3,827,290 | Aug. 06, 1974 | A. Carlson | Stream table study center | ||