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Patents Grants
last 30 patents
Information
Patent Grant
Downhole apparatus
Patent number
6,289,991
Issue date
Sep 18, 2001
Ocre (Scotland) Limited
Clive John French
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole valve
Patent number
6,286,594
Issue date
Sep 11, 2001
Ocre (Scotland) Limited
Clive John French
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole apparatus
Patent number
6,230,808
Issue date
May 15, 2001
Ocre (Scotland) Limited
Clive John French
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole apparatus
Patent number
6,220,355
Issue date
Apr 24, 2001
Ocre (Scotland) Limited
Clive John French
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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