Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363877 | Suction regulating valve | Herman E. Frentzel | 1994-11-15 |
| 5293659 | Automatic swimming pool cleaner | Herman E. Frentzel, Jerauld George Wright, Paul Sebor | 1994-03-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363877 | Suction regulating valve | Herman E. Frentzel | 1994-11-15 |
| 5293659 | Automatic swimming pool cleaner | Herman E. Frentzel, Jerauld George Wright, Paul Sebor | 1994-03-15 |