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US09010271B2 Method and system to whiten a golf hole 有权
打高尔夫球洞的方法和系统

Method and system to whiten a golf hole
摘要:
An apparatus includes a container holding a whitening material, and a dispenser to release the whitening material from the container, wherein the dispenser is configured to simultaneously dispense the whitening material in a spray pattern 360 degrees around the dispenser.
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