Multi-component marine electromagnetic signal acquisition...

Multi-component resistivity logging tool with multiple...

Multi-depth focused resistivity imaging tool for logging...

Multi-frequency boring tool locating system and method

Multi-frequency boring tool locating system and method

Multi-frequency electromagnetic wave resistivity tool with...

Multi-frequency focusing for MWD resistivity tools

Multi-frequency in-ground locating signal frequency code...

Multi-mode microresistivity tool in boreholes drilled with...

Multi-mode oil base mud imager

Multi-sensor system for the detection and characterization...

Multifrequency locating arrangement with frequency designation

Multifrequency method for direct airborne electromagnetic prospe

Multifrequency signal transmitter with attenuation of selected h

Multiple depths and frequencies for simultaneous inversion of el

Multiple frequency based leakage correction for imaging in...

Multiple frequency electric excitation method and identifying co

Multiple site magnetotelluric measurements

Multiple transmit frequency induction logging system with closed

Multiple transmitter and receiver well logging device with...