Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423645 | Pipe spinner | Padmasiri Daya Seneviratne, Joseph Armand Picard | 1984-01-03 |
| 4320915 | Internal elevator | Padmasiri Daya Seneviratne, Daniel Juhasz | 1982-03-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423645 | Pipe spinner | Padmasiri Daya Seneviratne, Joseph Armand Picard | 1984-01-03 |
| 4320915 | Internal elevator | Padmasiri Daya Seneviratne, Daniel Juhasz | 1982-03-23 |