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Gareth Robert Sheppard
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Lima, PE
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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
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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