Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373989 | Sprinkler head having a checking means for checking that fluid has been filled inside of a sprinkler head body and method for checking that the fluid has been filled using such sprinkler head | — | 1994-12-20 |
| 5351999 | Pipe coupling arrangement | — | 1994-10-04 |
| 5327976 | Method of installing pipes for sprinkler head mounting, and sprinkler-head mounting piping arrangement | — | 1994-07-12 |