This invention relates to explosive mines of the type which are hidden from view, usually by being buried in the ground, and provided...doi:US2448020 ADarnell Richard CUSUS2448020 * May 17, 1943 Aug 31, 1948 Darnell Richard C Device for hidden explosive mines...
The device has a pressure and sound-proof chamber with a lockable aperture, and a multi-frequent transmission, radiation and search device for searching an electronic igniter utilized for igniting explosive charges hidden in a luggage or at a passenger. A video monitor is arranged in the chamber...