Patent classifications
G
PHYSICS
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G05
CONTROLLING; REGULATING
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G05D
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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G05D11/02
Controlling ratio of two or more flows of fluid or fluent material
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G05D11/13
characterised by the use of electric means
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G05D11/131
by measuring the values related to the quantity of the individual components
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G05D11/133
with discontinuous action
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