Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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23/00
Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
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G01R23/02
Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
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G01R23/06
by converting frequency into an amplitude of current or voltage
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