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PCE
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CPC Subgroup
G01P 3/20

transferred to the indicator by fluid means

Full Title

Measuring linear or angular speed; Measuring differences of linear or angular speeds (G01P5/00 - G01P11/00 take precedence; ; counting mechanisms G06M) > Devices characterised by the use of mechanical means > by using centrifugal forces of solid masses > transferred to the indicator by fluid means