Karl Lerchbaum

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Fohnsdorf, AT

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Patents Grantslast 30 patents

Information Patent Grant
Roadheading or mining machine with roof bolt drilling and setting d...
- Patent number 7,316,456
- Issue date Jan 8, 2008
- Voest-Alpine Bergtechnik Gesellschaft m.b.H.
- Ralf Walker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Driving or mining machine
- Patent number 6,785,988
- Issue date Sep 7, 2004
- Voest-Alpine Bergtechnik Gesellschaft m.b.H.
- Egmont Lammer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining machine with sliding cutting tool assembly
- Patent number 6,428,109
- Issue date Aug 6, 2002
- Voest-Alpine Bergtechnik Gesellschaft m.b.H.
- Karl Lerchbaum
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support for underground excavations such as coal mines
- Patent number 5,178,494
- Issue date Jan 12, 1993
- Voest-Alpine Bergtechnik Gesellschaft m.b.H.
- Alfred Zitz
- E21 - EARTH DRILLING MINING
Information Patent Grant
Supporting frame
- Patent number 4,613,256
- Issue date Sep 23, 1986
- Voest-Alpine Aktiengesellschaft
- Alfred Zitz
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Roadheading or mining machine with roof bolt drilling and setting d...
- Publication number 20050129466
- Publication date Jun 16, 2005
- VOEST-ALPINE Bergtechnik Gesellschaft m.b.H.
- Ralf Walker
- E21 - EARTH DRILLING MINING
Information Patent Application
Driving or mining machine
- Publication number 20020157283
- Publication date Oct 31, 2002
- VOEST-ALPINE Bergtechnik
- Egmont Lammer
- E21 - EARTH DRILLING MINING