Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618194 | Electrical plug device | Hans-Heinrich Maue, Werner Hofmeister, Dieter Egert | 1997-04-08 |
DL
Dirk Langenhan
Overall (1997): #159,275 of 185,788Top 90%
1
Patents 1997