4. Cutlery

Jack D. Nelmark

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Apparatus for handling drill pipes

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Drill shock absorber

Spring devices – Resilient shock or vibration absorber – Tool movement dampening
Patent

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Resilient guide bushing mounting for blast hole drills or the li

Cutlery
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Profile ID: LFUS-PAI-P-491054

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