This Mug Keeps Coffee Warm (Not Piping Hot) For Hours On End, Innovation
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This Mug Keeps Coffee Warm (Not Piping Hot) For Hours On End, Innovation
An inventor may have perfected a way to make scalding hot coffee or tea instantly warm, and keep it that way
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Thermal Carafe - Hot Coffee All Day
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MU professor's invention could heat up the coffee mug industry, Local
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