Corporate Assignee
Boring or penetrating the earth
With above-ground means for handling drilling fluid or cutting
With tool shaft having plural passages for drilling fluid
Corporate Assignee
active
No affiliations
Drill bit assembly for fluid-operated percussion drill tools
Drill bit assembly for fluid-operated percussion drill tools
Percussion hammer for enlarging drilled holes
Reverse circulation down-the-hole drill
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Profile ID: LFUS-PAI-P-1322076