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Teijo Hulkkonen
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Tampere, FI
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Patents Grants
last 30 patents
Information
Patent Grant
Drilling device for drilling and reaming of a hole
Patent number
8,083,010
Issue date
Dec 27, 2011
Teijo Hulkkonen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Bit assembly for a hammering drill
Patent number
7,124,843
Issue date
Oct 24, 2006
Teijo Hulkkonen
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
DRILLING DEVICE FOR DRILLING AND REAMING OF A HOLE
Publication number
20090188722
Publication date
Jul 30, 2009
Teijo Hulkkonen
E21 - EARTH DRILLING MINING
Information
Patent Application
Bit assembly for a hammering drill
Publication number
20060054362
Publication date
Mar 16, 2006
Teijo Hulkkonen
E21 - EARTH DRILLING MINING