Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342900 | Vacuum shield device of an electron beam welding apparatus | Shuzo Susei, Shigetomo Matsui | 1982-08-03 |
HN
Hiroyoshi Nagai
Overall (1982): #58,654 of 81,411Top 75%
1
Patents 1982