OCTOBER 2014 (ET)
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RYAN HUTTON/ Staff photo
A prototype a smoke detector that can tell the difference between smoke caused by fire and smoke caused by other means, held by it's inventor Mattew Erdtmann.
RYAN HUTTON/ Staff photo
A prototype a smoke detector that can tell the difference between smoke caused by fire and smoke caused by other means, held by it's inventor Mattew Erdtmann.
