Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851066 | Snap-secured bladder for air-distribution terminal | Carl C. Herb | 1989-07-25 |
| 4811575 | Sound insulated bellows-type air terminal valve | Carl C. Herb | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851066 | Snap-secured bladder for air-distribution terminal | Carl C. Herb | 1989-07-25 |
| 4811575 | Sound insulated bellows-type air terminal valve | Carl C. Herb | 1989-03-14 |