Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D265251 | Swimming pool ladder | David Darby | 1982-06-29 |
| 4314390 | Composite burial vault and method for making same | David Darby | 1982-02-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D265251 | Swimming pool ladder | David Darby | 1982-06-29 |
| 4314390 | Composite burial vault and method for making same | David Darby | 1982-02-09 |