Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D381960 | Hot water tank control device | — | 1997-08-05 |
| 5600438 | Particle sensor with variable-speed blower | Gerhard Kreikebaum | 1997-02-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D381960 | Hot water tank control device | — | 1997-08-05 |
| 5600438 | Particle sensor with variable-speed blower | Gerhard Kreikebaum | 1997-02-04 |