Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372130 | Face mask assembly and method having a fan and replaceable filter | Donald J. Stern | 1994-12-13 |
| 5310095 | Spray texturing apparatus and method having a plurality of dispersing tubes | Donald J. Stern | 1994-05-10 |