Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883110 | Evaporable foam pattern for use in a casting process and having load transfer walls | Edward J. Morgan | 1989-11-28 |
| 4802447 | Foam pattern for engine cylinder block | — | 1989-02-07 |