| 摘要 |
A rotating dial-type indicator for illustrating the approximate theoretical alcoholic concentration in the blood of an average man as related to the volume of alcohol consumed, weight of the individual, and time elapsed. The indicator includes at least two circular scales, one being rotatable with respect to the other; one of the scales representing time, the other representing alcoholic concentration in the blood. A limit means is provided for discreetly rotating one of the scales throughout a prescribed arc, which may be selectively varied according to the weight of an individual.
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