Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik

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Burghaun, DE

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Patents Grantslast 30 patents

Information Patent Grant
Roller bit for tunnel-driving machines with segmented cutting rings
- Patent number 6,343,842
- Issue date Feb 5, 2002
- Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik
- Klaus Dieter Sauer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cylindrical cutting device
- Patent number 6,183,170
- Issue date Feb 6, 2001
- Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik
- Wolfgang Wald
- E21 - EARTH DRILLING MINING

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Patents Applicationslast 30 patents

Information Patent Application
Cutting or breaking tool as well as cutting insert for the latter
- Publication number 20020164215
- Publication date Nov 7, 2002
- Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik
- Heinrich Bauschulte
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC