Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4266371 | Operator for a casement-type window | Arthur G. Erdman | 1981-05-12 |
| 4253276 | Operator for a casement-type window | Eric W. Nelson | 1981-03-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4266371 | Operator for a casement-type window | Arthur G. Erdman | 1981-05-12 |
| 4253276 | Operator for a casement-type window | Eric W. Nelson | 1981-03-03 |