Subterranean boring machine

Subterranean fluid sampling systems and methods

Suction coring device and method

Telescopic drilling method

Tool for formation of holes in macroporous compressible soils

Tool for forming a hole in macroporous compressible soil

Tool for forming earth holes having fixed walls and method there

Tool for the removal of a drill core

Tunneling drill bit

Under frame mounted soil sampler for light trucks

Universal drive point device

Variable-length sampling device

Vertical percussion ground boring tool apparatus and method

Vibratory core drill apparatus for the recovery of soil or sedim

Well boring method and apparatus

Well point

Well point and method of driving same

Well point placement and removal apparatus

Wellbore mineral jetting tool