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Percussive Drill Bit
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Publication number 20250215752
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Publication date Jul 3, 2025
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Boart Longyear Manufacturing and Distribution Inc.
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Anthony LACHANCE
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E21 - EARTH DRILLING MINING
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Core Barrel Head Assembly
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Publication number 20250027384
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Publication date Jan 23, 2025
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Veracio Ltd
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Christopher L. Drenth
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E21 - EARTH DRILLING MINING
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PERCUSSIVE DRILL BIT
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Publication number 20240110445
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Publication date Apr 4, 2024
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LONGYEAR TM, INC.
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ANTHONY LACHANCE
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E21 - EARTH DRILLING MINING
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CORE BARREL HEAD ASSEMBLY
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Publication number 20240102356
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Publication date Mar 28, 2024
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LONGYEAR TM, INC.
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Christopher L. Drenth
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E21 - EARTH DRILLING MINING
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INTERNAL TUBING CUTTER
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Publication number 20130220615
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Publication date Aug 29, 2013
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Longyear TM, Inc.
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Christopher L. Drenth
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E21 - EARTH DRILLING MINING
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JOINTED SPEARHEAD ASSEMBLY
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Publication number 20090283327
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Publication date Nov 19, 2009
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Longyear TM, Inc.
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Christopher L. Drenth
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E21 - EARTH DRILLING MINING
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