U.S. federal trademark · Serial No. 78788685
Apparatus for the collection and detection of trace amounts of organic compounds, especially explosives or contraband drugs, comprised of a sample preconcentrator to collect the organic compounds from an air stream, or from a mechanical swipe of a surface, on a screen or filter, a heater to vaporize the collected compounds into a concentrated vapor stream, and a chemical detector to analyze the concentrated vapor sample
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