| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Albert L. Colburn | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 452,991 | May 26, 1891 | A.L. Colburn | Spindle feed for drill press | |
 | 1,389,028 | Aug. 30, 1921 | A.L. Colburn | Direct Reading Micrometer Caliper | |