FRIEZ
INDICATING AND/OR RECORDING INSTRUMENTS FOR MEASURING THE VALUE OF A CONDITION, OR A COMBINATION OF CONDITIONS, OF TEMPERATURE, HUMIDITY, FLUID PRESSURE, WIND DIRECTION, WIND VELOCITY, RAINFALL, SNOWFALL, LIQUID LEVEL OF FLUID MEDIA, EVAPORATION OF FLUID MEDIA, SUNSHINE DURATION; [ CONTROLLING INSTRUMENTS RESPONSIVE TO VARIATIONS IN THE VALUE OF A CONDITION OF TEMPERATURE AND/OR HUMIDITY, AND THE SAME COMBINED WITH MEANS FOR INDICATING OR RECORDING THE VALUE OF SAID CONDITION; ] ANEMOGRAPHS; ...
Expired · February 28, 1950 · 71593159 ·