72265943
Mar 6, 1967
Jan 28, 1969
METEROLOGICAL INSTRUMENTS-NAMELY, REMOTE RECORDING RAIN GAGES, REMOTE RECORDING HEATED SNOW GAGES, SOLAR RADIATION RECORDERS, WIND VANES, AIR METERS, ANEMOMETERS, HYGROTHERMOGRAPHS, BAROGRAPHS, THERMOGRAPHS, AND PSYCHROMETERS
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