|
CA1026314A
|
|
Continuous coring system and apparatus
|
|
US4102418A
|
|
Borehole drilling apparatus
|
|
CA1017739A
|
|
Bore hole air hammer
|
|
CA1016935A
|
|
Core bit
|
|
CA1022148A
|
|
Dual concentric pipe strings
|
|
CA1016932A
|
|
Percussive airhammer and core bit apparatus
|
|
CA1016933A
|
|
Swivel for core drilling
|
|
AU1581976A
|
|
Borehole air hammer
|
|
ZA7602044B
|
|
Sampling airhammer apparatus
|
|
US4030554A
|
|
Bore hole airhammer and anvil bit
|
|
AU8267875A
|
|
Swivel for core drilling
|
|
AU8268175A
|
|
Air hammer for continuous coring system
|
|
AU8267975A
|
|
Dual concentric drill pipe for continuous coring system
|
|
AU8268075A
|
|
Core bit
|
|
AU7565074A
|
|
Borehole air hammer
|
|
US3958645A
|
|
Bore hole air hammer
|
|
US3871486A
|
|
Continuous coring system and apparatus
|
|
US3866746A
|
|
Rotary bore hole air hammer drive mechanism
|
|
US3896886A
|
|
Bore hole hammer drill
|
|
US3944003A
|
|
Bore hole air hammer
|
