Gyroscopes; Seismographs; Tachometers; Apparatus for recording, transmission and reproduction of images; Apparatus for transmission of communication; Azimuth instruments; Compasses for measuring; Directional compasses; Distance measuring apparatus; Electric coils; Electric navigational instruments; Electric sensors; Electrical transducers; Electro-optic transducers; Electronic coils; Electronic detectors for observing and measuring the infrared spectrum, namely, infrared detectors; Global positioning system (GPS); GPS receivers; Magnetic and electromagnetic coils; Marine depth finders; Measuring apparatus, namely, angle finders; Navigational instruments for vehicles; Optical sensors; Photoelectric sensors; Pressure measuring apparatus; Satellite-aided navigation systems; Satellite navigational system, namely, a global positioning system (GPS); Electric or electronic sensors for satellite axial position and rotation; GPS transmitters
Electrical and Scientific Apparatus