Hans Bull

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Mobile mine-roof support
- Patent number 4,737,051
- Issue date Apr 12, 1988
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Hans Bull
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic mine-roof support
- Patent number 4,474,510
- Issue date Oct 2, 1984
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Hans Bull
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine-roof support
- Patent number 4,380,410
- Issue date Apr 19, 1983
- Hermann Hemscheidt Maschinenfabrik GmbH & Co.
- Hans Bull
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof-support distancing apparatus
- Patent number 4,330,226
- Issue date May 18, 1982
- Herman Hemscheidt Maschinenfabrik GmbH & Co.
- Josef Welzel
- E21 - EARTH DRILLING MINING