9
Gyroscopes; inclinometers; magnetometers; modems; pressure sensors; scintillometers; surveying instruments; wellbore surveying instruments, namely, cable depth counters; temperature sensors; directional borehole steering tools, namely directional compasses, inclinometers, clinometers, magnetic and electromagnetic location transmitters and detectors, and gyroscopically-oriented instruments, namely, gyroscopically oriented directional compasses, gyroscopically oriented inclinometers, and gyroscopically oriented clinometers; instruments for measuring borehole diameter, namely calipers for measuring borehole diameter; instruments for measuring direction and orientation of boreholes, namely, directional compasses, inclinometers, clinometers, magnetic and electromagnetic location transmitters and detectors, and gyroscopically-oriented instruments, namely, gyroscopically oriented directional compasses, gyroscopically oriented inclinometers, and gyroscopically oriented clinometers; instruments for measuring borehole properties, namely, dielectric probes, conductivity probes, densitometers, transducers for measuring sonic wave velocity, particle size analyzer, porosity meter, and gamma ray detector for detecting gamma ray emissions of geological formations from within a borehole; tools for communicating data from sensors within a borehole to an operator at the surface, namely, transmitters and receivers of electrical, magnetic, electromagnetic, and acoustical signals