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G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
G06M1/00—Design features of general application
G06M1/08—Design features of general application for actuating the drive
G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
G06M1/102—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means
G06M1/104—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means electromagnets, clicks
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Measurement Of Distances Traversed On The Ground
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