Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881380 | Plumbing module for bottled water cooler | Ronald J. Mrugala, Dipak J. Negandhi, Robert L. Latzko | 1989-11-21 |
| 4817583 | Insect guard for a gas appliance | Joseph J. Hanagan | 1989-04-04 |