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EUGENE, Ore. (AP) Keith Jin got tired of his dog Pebble scratching the door when he wanted to go out or come back inside his home in Eugene.

So Jin installed a doggy doorbell. There's one inside and one outside, just the right height for Pebble to push with his nose.

Jin told KVAL (http://is.gd/OnTbdh ) friends and relatives liked the idea. So he's started a business, selling the Pebble Smart Doggy Doorbell.

He thinks cats might be trained to use the doorbells, too.

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Information from: KVAL-TV, http://www.kval.com/

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