Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D424744 | Razor guard bar | David Coffin, Brian F. King, Michael O'Malley | 2000-05-09 |
| 5953824 | Razors providing pivoting and swivelling razor head support | Frank A. Ferraro, David Coffin, Brian Tubby | 1999-09-21 |
| D414298 | Razor | James E. McCay, Klaus Rosburg | 1999-09-21 |
| 4534093 | Beo-type machining system | William R. Jahnke, Bruce H. Rockel, Barry J. Brown, Floyd E. Hawley, John Sugrue +1 more | 1985-08-13 |
| 4484845 | Machine tool safety shield | Lawrence Benjamin, Adolph G. Bergman, William R. Jahnke | 1984-11-27 |