Arrangement for holding an instrument in alignment with a moving
Arrangement for locating radiaring sources
Arrangement for locating radiating sources
Arrangement for sensing the geometric characteristics of an obje
Arrangement for setting out points and straight lines
Attitude determination using two color, dual-sweeping laser syst
Attitude determination using two transmitter/receiver stations a
Attitude transfer system
Auto-boresight technique for self-aligning phase conjugate laser
Autoalignment system for high power laser
Autocollimating assembly for the self-calibration of a stellar n
Autocollimator
Automated inspection apparatus and method
Automatic alignment apparatus
Automatic boresighting device for an optronic system
Automatic grade rod and method of operation
Automatic levelling method and apparatus for rotating laser beam
Automatic space sextant
Automatic surveying apparatus using a laser beam
Automatically guided vehicle control system