IC 009. US 021 023 026 036 038. G & S: UNIAXIS AND MULTIAXIS ADJUSTING AND POSITIONING APPARATUS WITH PIEZOELECTRIC DRIVES, NAMELY, PIEZOELECTRIC TILTING PLATFORMS FOR OPTICAL ELEMENTS AND ACTIVE OPTICAL SYSTEMS; DATA PROCESSING DEVICES, NAMELY, COMPUTER HARDWARE; COMPUTER HARDWARE AND COMPUTER OPERATIONS SOFTWARE FOR ADJUSTING AND POSITIONING APPARATUS; INTEGRATED DISTANCE SENSORS FOR MECHANICAL POSITIONING APPARATUS; ENCAPSULATED AND NON-ENCAPSULATED PIEZOELECTRIC MULTILAYER ACTUATORS; PIEZOELECTRIC ULTRASOUND CONVERTERS, MULTIMODE COMPUTER NETWORK SWITCHES FOR OPTICAL WAVE GUIDES. FIRST USE: 19980000. FIRST USE IN COMMERCE: 20000000
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