Boring or penetrating the earth
Boring by directly applying heat to fluidize or comminute
Electrically produced heat
Inventor
active
Apparatus for perforating oil and gas wells
Earth boring apparatus employing high powered laser
Earth boring method employing high powered laser and alternate f
Method and apparatus for perforating oil and gas wells
System for the transmission and reception of directional radio s
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Profile ID: LFUS-PAI-P-475250