Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170955 | Textile winding machine having an operator accommodating package readying assembly | Hans Grecksch, Josef Derichs, Dietmar Engelhardt, Rene Bucken | 1992-12-15 |
| 4698456 | Electrical device for use in an explosive environment | — | 1987-10-06 |
| 4430693 | Illuminating device for underground mining | — | 1984-02-07 |
| 4423474 | Mine lamp | — | 1983-12-27 |
| 4312028 | Shockproof fluorescent light fixture | — | 1982-01-19 |
| 4186432 | Lamp for use in subterranean applications | — | 1980-01-29 |