Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320042 | Binder compositions and process for preparing said compositions | Hugh C. Anderson, Russell B. Lembke | 1982-03-16 |
| 4318840 | Binders for foundry core sands | Russell B. Lembke | 1982-03-09 |