Seismic exploration process by reflection for the determination of faults and geological accidents in deposits and in the layers at the bottom
US3352375A
Method and arrangement for detecting faults traversing a mineral stratum
US3117243A
Circuit arrangement for delaying the charging of a capacitor
FR1297069A
Assembly for seismograph amplifier
FR1293840A
Adjustment device for seismic amplifiers
FR1291334A
Method and installation for the transmission and recording by radio of the moment of failure and the duration of the drilling in the seismic exploration of soils by explosions
FR1283608A
Control amplifier reduction unit
FR1283607A
Amplification circuit for intensifying reflection, in seismic recordings
FR1253607A
Measuring device for seismic exploration of soils by explosion
FR1165523A
Seismic explosion measuring device
FR1156068A
Method and installation for the evaluation of the duration of seismic pulses in explosion seismic
DE1009723B
Method and measuring device for testing underground metallic lines with protective insulation for insulation faults and line corrosion
FR1143970A
Process for the seismic examination of the ground, under water, at sea
US2949974A
Seismic exploration apparatus
FR1125318A
Method and device for seismic soil exploration
ES200108A1
Procedure for the localization and determination of the subsuelo's wealth position (Machine-translation by Google Translate, not legally binding)
FR1043546A
Method for discovering riches in the ground and for determining their position
CA741453A
Reflective seismic process for detecting dislocations and disturbances in seams and layers below ground
