Apparatus and method for coring and/or drilling
Apparatus and method for obtaining a core at in situ pressure
Apparatus and method for obtaining subterranean samples
Apparatus and method to drill and lift core-drilled...
Apparatus for hard rock sidewall coring a borehole
Apparatus for obtaining a soil core sample
Apparatus for obtaining a soil core sample
Apparatus for recovering ground soil samples
Assembly and method for extracting discrete soil samples