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Duwayne SPRINGER
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Lloydminster, CA
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Patents Grants
last 30 patents
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Patent Grant
Reciprocating wellbore obstruction-clearing tool and bailer
Patent number
9,951,583
Issue date
Apr 24, 2018
LONGHORN CASING TOOLS INC.
Randy Gosselin
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
RECIPROCATING WELLBORE OBSTRUCTION-CLEARING TOOL AND BAILER
Publication number
20160326821
Publication date
Nov 10, 2016
LONGHORN CASING TOOLS INC.
Randy GOSSELIN
E21 - EARTH DRILLING MINING