Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790021 | Apparatus for refurbishing thermoplastic drum | Virgil E. Dowling, Ray P. Richard, Samuel G. Dowling | 2004-09-14 |
| 6685857 | Method of refurbishing thermoplastic drums | Virgil E. Dowling, Ray P. Richard, Samuel G. Dowling | 2004-02-03 |