Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323048 | Ball shooting machine for volleyball practice | Retsuo Saito | 1982-04-06 |
| D260024 | Serving machine for use in practicing volleyball | Retsuo Saito | 1981-07-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323048 | Ball shooting machine for volleyball practice | Retsuo Saito | 1982-04-06 |
| D260024 | Serving machine for use in practicing volleyball | Retsuo Saito | 1981-07-28 |