Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968231 | Oil-free rotary compressor with injected water and dissolved borate | Bernard Zimmern | 1990-11-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968231 | Oil-free rotary compressor with injected water and dissolved borate | Bernard Zimmern | 1990-11-06 |