Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805203 | Cover plate for concealed sprinkler | James G. Retzloff | 2004-10-19 |
| 6715561 | Vacuum dry sprinkler system containing a sprinkler head with expulsion assembly | — | 2004-04-06 |