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A drawing from Wal-Mart's granted patent for a system of automated shopping carts. US Patent Office Sept. 14, 2016, 4:15 PM EDT / Updated Sept. 14, 2016, 4:15 PM EDT ...
Shopping carts can cost between $75-$150, with some fancy ones priced between $300-$400, the story reports. Everett also considers abandoned carts a nuisance .
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