Inventor
Franz D. Hahn
Inventor
Beckum, DE
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Bprimary
C21BManufacture of iron or steel50%
F16KValves50%
PatentTitleYear
4,660,805'Device for shutting off a pipe'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to KRUPP POLYSIUS AG (1)· patent assignee history
1987Based in Beckum, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KRUPP POLYSIUS AG | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beckum, DE | 1 | 1987 |