| Patents for Michael D. Blackston |
Patents 1 -
4
of 4
      |
| Number | Date | Patentee | Title | Type |
| 5,251,521 | Oct. 12, 1993 | D.A. Burda, M.D. Blackston | TORX-compatible elliptical driver | wrench set holders |
| 5,791,211 | Aug. 11, 1998 | M.L. Petroske, D.A. Burda, B. Bondhus, M.D. Blackston, J.R. Bondhus | Folding hand tool set | wrench set holders |
| 5,970,828 | Oct. 26, 1999 | D.A. Burda, B. Bondhus, M.D. Blackston, J.R. Bondhus, M.L. Petroske | Folding hand tool set | wrench set holders |
| 6,128,981 | Oct. 10, 2000 | M.L. Petroske, D.A. Burda, B. Bondhus, M.D. Blackston, J.R. Bondhus | Folding hand tool set | wrench set holders |
