| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Charles W. Preston | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 498,726 | May 30, 1893 | C.W. Preston | Stock for Surface Gages or Other Implements | |
 | 504,278 | Aug. 29, 1893 | C.W. Preston | Combination Gage | |
 | 509,096 | Nov. 21, 1893 | C.W. Preston | Caliper for Measuring Distances | |