Invention Grant
US08715078B1 Advertising and golf practice device 有权
广告和高尔夫练习装置

Advertising and golf practice device
Abstract:
An advertising and golf training device is provided with a ball impact detector, image display, a database of advertising images, controller for selecting an image from the database for display and displaying the image upon display in response to signal from the ball impact detector, and confirmation system.
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