Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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1/00
Sampling; Preparing specimens for investigation
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G01N1/02
Devices for withdrawing samples
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G01N1/10
in the liquid or fluent state
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G01N1/20
for flowing or falling materials
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G01N1/2035
by deviating part of a fluid stream, e.g. by drawing-off or tapping
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