Halbergerhutte GmbH

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Saarbrucken, DE

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Patents Grantslast 30 patents

Information Patent Grant
Pipe joint for driving pipes laid underground by the driving technique
- Patent number 5,165,822
- Issue date Nov 24, 1992
- Halbergerhutte GmbH
- Hans-Georg Hein
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for producing by the casting technique a cooling means fo...
- Patent number 4,693,294
- Issue date Sep 15, 1987
- Halbergerhutte GmbH
- Karl-Hans Albrecht
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Slow fade inocculant and a process for the inocculation of melted c...
- Patent number 4,292,075
- Issue date Sep 29, 1981
- SKW Trostberg Aktiengesellschaft
- Friedrich Wolfsgruber
- C21 - METALLURGY OF IRON