Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
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3/00
Measuring linear or angular speed; Measuring differences of linear or angular speeds
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G01P3/42
Devices characterised by the use of electric or magnetic means
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G01P3/50
for measuring linear speed
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G01P3/52
by measuring amplitude of generated current or voltage
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