Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370428 | Mechanism for releasably locking sashes in door-or window frames | Karl-Heinz Dreifert | 1994-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370428 | Mechanism for releasably locking sashes in door-or window frames | Karl-Heinz Dreifert | 1994-12-06 |