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Castrop-Rauxel, DE
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last 30 patents
Information
Patent Grant
Guide for a hewing machine mounted on a conveyor
Patent number
5,131,723
Issue date
Jul 21, 1992
Kloeckner-Becorit GmbH
Franz Roling
E21 - EARTH DRILLING MINING
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Patent Grant
Levelling ram for roof-shield mine support systems
Patent number
4,586,851
Issue date
May 6, 1986
Kloeckner-Becorit GmbH
Willy Watermann
E21 - EARTH DRILLING MINING
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