| 摘要 |
An indicator device for use for example by a waitress which indicates by the position of a movable member, the type of coffee used by customers at a table. In one position, the indicator indicates that two or more customers are using regular coffee. In another position, the indicator indicates that two or more customers are using decaffinated coffee and in a third position, the indicator indicates that at least one customer is using regular coffee and the other customer is using decaf coffee. This indicator provides a convenient way to indicate at all times what kind of coffee is being utilized at a particular table.
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