Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867379 | Rotary stream sprinkler unit | — | 1989-09-19 |
| 4842201 | Rotary stream sprinkler unit | — | 1989-06-27 |
| 4836449 | Sprinkler unit with stream deflector | — | 1989-06-06 |
| 4836450 | Sprinkler unit with alternating stream interruptor | — | 1989-06-06 |
| 4834289 | Pop-up sprinkler unit | — | 1989-05-30 |
| 4815662 | Stream propelled rotary stream sprinkler unit with damping means | — | 1989-03-28 |
| 4796809 | Two-stage pop-up sprinkler | — | 1989-01-10 |