Boring or penetrating the earth
Bit or bit element
Magnetized or with magnet
Examiner
active
No affiliations
Ablatible drill
Acoustical underwater communication system for command control a
Adjustable gage cutter scraper for tunneling machines
Air lift system for large diameter borehole drilling
Air-operated drilling machine or rotary-percussive action
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Profile ID: LFUS-PAI-P-7675