Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856331 | Bellows-type gas meter | Heinrich Bertke, Reinhard Bruggemann, Peter Hampel | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856331 | Bellows-type gas meter | Heinrich Bertke, Reinhard Bruggemann, Peter Hampel | 1989-08-15 |