Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872789 | Method and apparatus for machining valve seats and valve stem guides in a deep-walled engine monoblock workpiece | — | 1989-10-10 |
| 4872429 | Method of making low friction finger follower rocker arms | Anthony T. Anderson | 1989-10-10 |
| 4858670 | Method of making and apparatus for monoblock engine construction | Michael A. Pulick | 1989-08-22 |
| 4847961 | Method and apparatus for stitch-machining deep cavities in metal workpieces | David A. Donovan | 1989-07-18 |
| 4842450 | Method and apparatus for self-adjusting boring bar | David A. Donovan | 1989-06-27 |
| 4836719 | Method and apparatus for machining valve seats and valve stem guides in a deep-walled engine monoblock workpiece | — | 1989-06-06 |
| 4829647 | Method of making low friction finger follower rocker arms | Anthony T. Anderson | 1989-05-16 |