Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883921 | Cable jointing clamp | Jan P. R. Tjaderhane | 1989-11-28 |
| 4712342 | Fire-sealed lead-through for framed building components | Inge Sundstrom | 1987-12-15 |
| 4570323 | Method and tool for inserting an overdimensioned elastic body in a cavity | Hans W. Siebert | 1986-02-18 |
| 4480717 | Prefabricated lubricant unit | Hans W. Siebert | 1984-11-06 |
| D275831 | Electrical conductor wire feeding tube for fire wall lead-in | Hans W. Siebert | 1984-10-09 |
| D274904 | Mounting ring for prefabricated fire wall lead-in | Hans W. Siebert | 1984-07-31 |
| D274119 | Tool for making a through hole | Hans W. Siebert | 1984-06-05 |
| D274120 | Tool for making a through hole | Hans W. Siebert | 1984-06-05 |
| D271658 | Mounting tool for a guide tube for cables in a fire wall | Hans W. Siebert | 1983-12-06 |
| D271022 | Hand-cutter | Hans W. Siebert | 1983-10-18 |
| D270837 | Hand-cutter | Hans W. Siebert | 1983-10-04 |
| D270031 | Combined cable channel cutting tool and removable cable guide for firewall lead-in | Hans W. Siebert | 1983-08-09 |
| D261554 | Cable channel shelf | — | 1981-10-27 |
| D256545 | Miter plate | Stig-Arne Lofving | 1980-08-26 |
| D256579 | Channel system for electric conductors | Peter Maddock | 1980-08-26 |