Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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21/00
Measuring or testing not otherwise provided for
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G01D21/02
Measuring two or more variables by means not covered by a single other subclass
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