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Leo Hakkinen
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Tampere, FI
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Patents Grants
last 30 patents
Information
Patent Grant
Method and arrangement for determining position of unmanned mining...
Patent number
6,616,244
Issue date
Sep 9, 2003
Sandvik Tamrock
Leo Häkkinen
G05 - CONTROLLING REGULATING
Information
Patent Grant
Arrangement in rock drilling apparatus
Patent number
6,615,932
Issue date
Sep 9, 2003
Sandvik Tamrock Oy
Tapani Huhdanmäki
E21 - EARTH DRILLING MINING
Information
Patent Grant
Arrangement for leading flexible elements to a rock drill, and a ho...
Patent number
6,015,112
Issue date
Jan 18, 2000
Tamrock Oy
Leo Hakkinen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Arrangement in a feed beam of a rock drill
Patent number
6,009,957
Issue date
Jan 4, 2000
Tamrock Oy
Mauri Esko
E21 - EARTH DRILLING MINING
Information
Patent Grant
Arrangement for controlling boom for rock drilling unit
Patent number
5,896,936
Issue date
Apr 27, 1999
Oy; Tamrock
Leo Hakkinen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Arrangement for a telescope feeder of a rock-drilling machine
Patent number
5,884,712
Issue date
Mar 23, 1999
Tamrock Oy
Leo Hakkinen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for storing drill rods
Patent number
5,297,642
Issue date
Mar 29, 1994
Tamrock OY
Pauli Rajakallio
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for handling sheets or the like
Patent number
4,735,539
Issue date
Apr 5, 1988
Oy Tampella AB
Leo Hakkinen
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Device for transport of cannon or such like
Patent number
4,729,279
Issue date
Mar 8, 1988
Oy Tampella AB
Heikki Collanus
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Drill rod opening device for sectional-rod drilling equipment
Patent number
4,591,005
Issue date
May 27, 1986
Oy Tampella AB
Ossi Paivalainen
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Arrangement for determining position of unmanned mining vehicles
Publication number
20030052529
Publication date
Mar 20, 2003
Leo Hakkinen
G05 - CONTROLLING REGULATING
Information
Patent Application
Arrangement in rock drilling apparatus
Publication number
20020036101
Publication date
Mar 28, 2002
Tapani Huhdanmaki
E21 - EARTH DRILLING MINING