Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4639801 | Loading mechanism for a magnetic tape cassette apparatus | Walter Steup, Willibald Wieczorek, Franz Beitler | 1987-01-27 |
RH
Rolf D. Hoppmanns
Overall (All Time): #3,967,343 of 4,157,543Top 100%
1
Patents All Time