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Martin Stumpp
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Ravensburg, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Drill head insert or drill head attachment and drill
Patent number
9,879,483
Issue date
Jan 30, 2018
DREBO WERKZEUGFABRIK GMBH
Alexander Zuern
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Drill
Patent number
9,718,136
Issue date
Aug 1, 2017
DreBo Werkzeugfabrik GmbH
Martin Stumpp
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Drilling tool
Patent number
8,794,881
Issue date
Aug 5, 2014
DreBo Werkzeug Fabrik GmbH
Alexander Zürn
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
Drill Head Insert or Drill Head Attachment and Drill
Publication number
20160130880
Publication date
May 12, 2016
DreBo Werkzeugfabrik GmbH
Alexander Zuern
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill
Publication number
20160129506
Publication date
May 12, 2016
DreBo Werkzeugfabrik GmbH
Martin Stumpp
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Drilling Tool
Publication number
20120148359
Publication date
Jun 14, 2012
Alexander Zürn
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR