Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646109 | Automatic drafting machine having air blower means for holding paper down | Akio Toyama, Shuso Matsumoto | 1987-02-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646109 | Automatic drafting machine having air blower means for holding paper down | Akio Toyama, Shuso Matsumoto | 1987-02-24 |