Horology: time measuring systems or devices – With calendar indicator – Electro-optical
Patent
1996-10-29
1997-12-09
Miska, Vit W.
Horology: time measuring systems or devices
With calendar indicator
Electro-optical
368239, B04B 1924, C04C 1700
Patent
active
056967390
ABSTRACT:
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.
REFERENCES:
patent: 4117657 (1978-10-01), Shimizu
patent: 4130987 (1978-12-01), Schickedanz
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