Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948088 | Shuttering apparatus | — | 1990-08-14 |
| 4886234 | Shuttering apparatus | Hans Braun | 1989-12-12 |
| 4316594 | Formwork panel for concrete walls | — | 1982-02-23 |
| 4301990 | Formwork panel for concrete walls with wedge-type connections | — | 1981-11-24 |
| 4290576 | Climbing scaffolding | — | 1981-09-22 |