| 摘要 |
An odometer type device for recording mileage and changes therein in a vehicle or the like, including a plurality of mileage indicating wheels placed on a shaft for rotation, each wheel being in closely spaced relationship to one another. The wheels each have a hub portion, an outer rim portion and integral spokes connecting the hub and rim portions. The spokes have a thinned midportion sufficiently weak so as to separate and disconnect the hub and rim portions to defeat attempts to move one wheel axially away from an adjacent wheel by imposing a significant axially directed prying force on the rim.
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