Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374170 | Screw vacuum pump | Noburu Shimizu | 1994-12-20 |
| 5314320 | Screw vacuum pump with a reduced starting load | Noburu Shimizu | 1994-05-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374170 | Screw vacuum pump | Noburu Shimizu | 1994-12-20 |
| 5314320 | Screw vacuum pump with a reduced starting load | Noburu Shimizu | 1994-05-24 |