Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326556 | Apparatus for sealing the periphery of an opening | Norbert Heger | 1982-04-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326556 | Apparatus for sealing the periphery of an opening | Norbert Heger | 1982-04-27 |