PRAKLA-SEISMOS
AIRCRAFT AND MARINE NAVIGATION INSTRUMENTS-NAMELY, NAVIGATION COMPUTERS, NAVIGATION CONTROL INDICATORS AND NAVIGATION TRANSMITTERS; SEISMIC RECORDING, AMPLIFYING AND MEASURING INSTRUMENTS-NAMELY, ELECTRONIC SEISMIC RECORDERS, SEISMIC OSCILLOGRAPHS, SEISMOS MAGNETIC TAPE RECORDERS FOR RECORDING SEISMIC MEASUREMENTS, SEISMIC AMPLIFIERS, MAGNETOMETERS, ELECTRIC TERRESTRIAL FIELD METERS, TRANSMIT CONTROLLERS FOR SEISMIC MEASUREMENTS, MAGNETIC CORRELATORS FOR SEISMIC MEASUREMENTS, ELECTRO-HYDRAULI...
Expired · June 26, 1968 · 72301384 ·
