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Fredrik Bjork
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Sandviken, SE
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Patents Grants
last 30 patents
Information
Patent Grant
Rock drill bit
Patent number
7,392,863
Issue date
Jul 1, 2008
Sandvik Intellectual Property AB
Fredrik Björk
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock drill bit having outer and inner rock-crushing buttons
Patent number
7,296,641
Issue date
Nov 20, 2007
Sandvik Intellectual Property AB
Per-Ola Hadin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Percussion drill bit and a regrindable cemented carbide button ther...
Patent number
7,207,402
Issue date
Apr 24, 2007
Sandvik Intellectual Property AB
Fredrik Björk
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
GUIDE ADAPTER
Publication number
20220259929
Publication date
Aug 18, 2022
SANDVIK MINING AND CONSTRUCTION TOOLS AB
Fredrik BJORK
E21 - EARTH DRILLING MINING
Information
Patent Application
Rock drill bit
Publication number
20070137900
Publication date
Jun 21, 2007
Fredrik Bjork
E21 - EARTH DRILLING MINING
Information
Patent Application
Rock drill bit having outer and inner rock-crushing buttons
Publication number
20060060389
Publication date
Mar 23, 2006
Sandvik Intellectual Property AB
Per-Ola Hadin
E21 - EARTH DRILLING MINING
Information
Patent Application
Percussion drill bit and a button therefor
Publication number
20050161264
Publication date
Jul 28, 2005
Fredrik Bjork
E21 - EARTH DRILLING MINING