73114709
Feb 4, 1977
Feb 20, 1979
MARINE INSTRUMENTS-NAMELY, WIND SPEED INDICATORS, BOAT SPEED INDICATORS, DISTANCE LOG RECORDERS, TRIM/PERFORMANCE VARIATION DETECTORS, APPARENT WIND DIRECTION INDICATORS, DEPTH SOUNDERS AND AUXILIARY CONTROLS FOR THE FOREGOING, ESPECIALLY AS PROVIDED AS MODULAR SYSTEMS OF SEVERAL INSTRUMENTS IN A SINGLE DISPLAY AND MARINE RADIOS
Electrical and Scientific Apparatus