Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329973 | Rigid polyvinyl chloride pipe | — | 1994-07-19 |
| 5316047 | Pressure-resistant helical corrugated pipe | — | 1994-05-31 |
| 5311753 | Drain hose for washing machine and which includes a corrugated intermediate portion | — | 1994-05-17 |
| 5284185 | Pressure-resistant helical corrugated pipe and method of producing same | — | 1994-02-08 |