Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872941 | Automatic welding apparatus for welding thermoplastic materials in sheet form | Glenn W. Lippman | 1989-10-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872941 | Automatic welding apparatus for welding thermoplastic materials in sheet form | Glenn W. Lippman | 1989-10-10 |