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Rudolf Hausherr & Sohne GmbH & Co. KG
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Sprockhovel, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Drilling device
Patent number
5,193,626
Issue date
Mar 16, 1993
Rudolf Hausherr & Sohne GmbH & Co. KG
Wilhelm Jacob
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling apparatus
Patent number
5,092,411
Issue date
Mar 3, 1992
Rudolf Hausherr & Sohne GmbH & Co. KG
Heinrich-Rudolf Hausherr
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for producing drilling holes from an angled position with re...
Patent number
4,905,777
Issue date
Mar 6, 1990
Rudolf Hausherr & Sohne GmbH & Co. KG
Klaus Spies
E21 - EARTH DRILLING MINING
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Patent Grant
Flexible rock anchor
Patent number
4,798,501
Issue date
Jan 17, 1989
Rudolf Hausherr & Sohne GmbH & Co. KG
Klaus Spies
E21 - EARTH DRILLING MINING
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