发明授权
US5696739A Alcohol and tobacco age identification electronic perpetual calendar 失效
酒精和烟草年龄鉴定电子万年历

Alcohol and tobacco age identification electronic perpetual calendar
摘要:
An alcohol and tobacco age identification perpetual calendar specifically designed for cashiers of the stores that sells alcohol or tobacco products to check customer's identification and can easily verify customer's age before making the sales.
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