Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697321 | Method of manufacturing baffles for shell and tube type heat exchangers | Hisao Shibuya | 1987-10-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697321 | Method of manufacturing baffles for shell and tube type heat exchangers | Hisao Shibuya | 1987-10-06 |