Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300076 | Single sheave lifting block | Manfred Stoeber | 1989-02-28 |
| D300077 | Double sheave lifting block | Manfred Stoeber | 1989-02-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300076 | Single sheave lifting block | Manfred Stoeber | 1989-02-28 |
| D300077 | Double sheave lifting block | Manfred Stoeber | 1989-02-28 |