Bertil Ederyd

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Gavle, SE

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Patents Grantslast 30 patents

Information Patent Grant
Portion of a drill bit
- Patent number D525995
- Issue date Aug 1, 2006
- Sandvik Intellectual Property AB
- Fredrik Bjork
- D15 - Machines not elsewhere specified
Information Patent Grant
Rock drill bit having retrac teeth and method for its manufacturing
- Patent number 6,494,275
- Issue date Dec 17, 2002
- Sandvik AB
- Bengt Åsberg
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Thread joint for percussive drilling and parts therefor
- Publication number 20020074797
- Publication date Jun 20, 2002
- Per-Olof Liljebrand
- E21 - EARTH DRILLING MINING
Information Patent Application
Rock drill bit having retrac teeth and method for its manufacturing
- Publication number 20010018990
- Publication date Sep 6, 2001
- Bengt Asberg
- E21 - EARTH DRILLING MINING