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Wednesday, June 19, 2013
11:53 am, Wednesday, June 2, 2010 -- The device contains a motor-driven grinder, which grinds up debris (twigs, leaves, etc.), which is moved to the downspout when it rains, and brought into contact with the blades of the device.
The device includes a water sensor and a debris sensor that, when both sensors are activated, turn on...
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