Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622644 | Mixed gas R-12 refrigeration apparatus | Richard Stevenson, Mikhail Boyarsky, Boris Yudin | 1997-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622644 | Mixed gas R-12 refrigeration apparatus | Richard Stevenson, Mikhail Boyarsky, Boris Yudin | 1997-04-22 |