| 摘要 |
A hand-held, reflective signaling device made up of a card having a first and second side, each of which contain symbols and reflective portions. Each of the symbols represents a potential request for service by the card holder. The cardholder displays to approaching traffic or other passersby the side of the card containing the symbol matching the cardholder's current request for service, e.g., the request for taxi service. In doing so, the cardholder indicates his or her request for service in a clear, highly visible, and unambiguous manner. The device does not require batteries, light sources, or electrical circuitry. Further, due to its credit-card-like shape, the cardholder can keep the device close at hand in a wallet or purse.
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