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DE2639958A1
|
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METHOD AND DEVICE FOR CHECKING HYGROMETERS OR HYGROSTATS
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|
DE2431051A1
|
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MEASURING DEVICE FOR THE WATER ACTIVITY OF SUBSTANCES CONTAINING FREE WATER, IN PARTICULAR FOOD, SUCH AS MEAT, MEAT PRODUCTS ETC.
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DE2427457A1
|
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Absolute or differential pressure gauge - has a pressure capsule and a liquid for pressure reading
|
|
DE2256953A1
|
|
BAROMETER, IN PARTICULAR ANEROID BAROMETER
|
|
DE1120753B
|
|
hygrometer
|
|
DE1039257B
|
|
Hygrometer with direct display of the water content of materials, independent of the temperature
|
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GB441190A
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Improvements in or relating to meteorological instruments
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