Description
Class G01P : MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
Subclass 3/18: Measuring linear or angular speed; Measuring differences of linear or angular speeds ( G01P 5/00-G01P 11/00 take precedence) Devices characterised by the use of mechanical means by using centrifugal forces of solid masses transferred to the indicator by mechanical means