C. PLATH

NAVIGATION SYSTEMS COMPRISING NAVIGATION EQUIPMENT, NAMELY, [ SEXTANTS, ]MAGNETIC COMPASSES, [ GYRO COMPASSES, AUTO PILOTS, STEERING USED FOR SHIPPING, STEERING CONTROLS, NAMELY, RUDDER CONTROLS, SPEED LOGS, COMPASS REMOTE TRANSMISSION SYSTEMS, NAMELY, TRANSMITTING MAGNETIC COMPASS SYSTEMS COMPRISING A MAGNETIC COMPASS, A MAGNETIC FIELD SENSOR AND A REMOTE HEADING DISPLAY UNIT, RUDDER ANGLE INDICATORS, TRACK CONTROLS AND AUTOMATIC PLOTTING TABLES ]