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Vincent Buchoud
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Boulogne-Billancourt, FR
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Patents Grants
last 30 patents
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Patent Grant
Electromagnetic coupler
Patent number
10,465,450
Issue date
Nov 5, 2019
Tuboscope Vetco (France) SAS
Rachid Guelaz
E21 - EARTH DRILLING MINING
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Patent Grant
Drill stem component comprising a movable coupler and a pressure ch...
Patent number
9,441,418
Issue date
Sep 13, 2016
VALLOUREC DRILLING PRODUCTS FRANCE
Beranger Mitjans
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
ELECTROMAGNETIC COUPLER
Publication number
20140041945
Publication date
Feb 13, 2014
VAM DRILLING FRANCE
Rachid Guelaz
H01 - BASIC ELECTRIC ELEMENTS
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Patent Application
DRILL STEM COMPONENT COMPRISING A MOVABLE COUPLER AND A PRESSURE CH...
Publication number
20140034393
Publication date
Feb 6, 2014
VAM DRILLING FRANCE
Beranger Mitjans
E21 - EARTH DRILLING MINING