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Nikolaus Kleuters
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Geilenkirchen, DE
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last 30 patents
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Patent Grant
Shaft enlargement arrangement for a boring system
Patent number
10,697,246
Issue date
Jun 30, 2020
MASTER DRILLING SOUTH AFRICA (PTY) LTD.
Nikolaus Kleuters
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel-boring machine and method of using the same
Patent number
6,431,653
Issue date
Aug 13, 2002
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Nikolaus Kleuters
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for producing an upwardly directed drill hole
Patent number
4,474,253
Issue date
Oct 2, 1984
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Nikolaus Kleuters
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
SHAFT ENLARGEMENT ARRANGEMENT FOR A BORING SYSTEM
Publication number
20180010392
Publication date
Jan 11, 2018
Masters Sinkers (PTY) Ltd.
Nikolaus Kleuters
E21 - EARTH DRILLING MINING