BRISTLE BACK
Power-operated downhole tools used for the drilling of oil and gas, namely, power operated drill bits, reamers, cutters, junk subs and debris catchers; power-operated well cleaning downhole tools, namely, power operated wipers, scrapers, brush tools; power-operated polishers and scourers for maintaining a clean interior of a casing or liner within a well bore; power-operated fluid filters for well drilling machines for selectively filtering and removing solids from downhole fluids; industrial...
Cancelled · October 21, 2013 · 86096765 ·