Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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11/00
Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
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G01K11/02
using evaporation or sublimation, e.g. by observing boiling
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G01K11/04
from material contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the vapour
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