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Image Number 2 for United States Patent #4747515.
An apparatus for dispensing markers for distribution in a terrain. The apatus is designed as an add-on unit for mounting on the rear of a self-propelled land vehicle.The markers are units of a foldable type comprising each a base plate and a visible marker member hingedly connected thereto and they are stacked in folded state inside one or more shafts of the apparatus. Near the bottom of each shaft there is provided a delivery gate and shears controllable from the vehicle for the sequential release of individual marker units.
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