| 摘要 |
The indicator consists of two plastic, paper or cardboard fans each with zigzag shaped indicator surfaces. The two fans are positioned on top of one another in a shaft-like container. The indicator surfaces (3) of the first fan (1) extend twice as far as the indicator surfaces of the second fan (2). The information of prices and or products is contained in the top (5) and or bottom (6) part of the second and first fans.
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