Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181825 | Method for lifting and guiding elements on building site | Yoshihisa Sugitani | 1993-01-26 |
| 4614067 | Assembly of prefabricated panel units having lapping watertight seals | — | 1986-09-30 |
| 4287697 | Wall panel attachment apparatus | Moriyoshi Hayashi | 1981-09-08 |