Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4533251 | Apparatus and process for automatically measuring aperture size of apertured material | Robert C. Kocher, Alfred Piorkow, Kenneth H. Shaner, J. Thomas Smith | 1985-08-06 |
| 4445553 | Apparatus for shaping a wooden workpiece | Eugene F. Hanyzewski, Thomas S. Walker | 1984-05-01 |
| 4349278 | Comparator mask for aperture measuring apparatus | Alfred Piorkow | 1982-09-14 |