Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803764 | Apparatus for manufacturing a spacer frame for insulating glass | Karl Lenhardt | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803764 | Apparatus for manufacturing a spacer frame for insulating glass | Karl Lenhardt | 1989-02-14 |