239607 ⎘
Acoustics; Wave coupling Earth
Geophysical sensor mounting with improved ground coupling
#2Apparatus and method for control of a vehicle
#3Wide bandwidth borehole dipole source for acoustic logging
#4Apparatus and method for control of a vehicle
#5Apparatus and method for control of a vehicle
#6Apparatus and system for acquiring seismic data over a loose surface
#7Apparatus and method for control of a vehicle
#8Fluid pumping apparatus