Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830913 | Fire-resistant glazing and method of making same | Michael Hassiepen | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830913 | Fire-resistant glazing and method of making same | Michael Hassiepen | 1989-05-16 |