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Christof Homrighausen
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Bad Berleburg, DE
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last 30 patents
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Patent Grant
Screw with a partially hardened functional tip and process for the...
Patent number
7,247,099
Issue date
Jul 24, 2007
EJOT GmbH & Co. KG
Heinrich Friederich
C21 - METALLURGY OF IRON
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last 30 patents
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Patent Application
Screw with a partially hardened functional tip and process for the...
Publication number
20040235576
Publication date
Nov 25, 2004
EJOT GmbH & Co. KG
Heinrich Friederich
C21 - METALLURGY OF IRON