Security and tracking system
作者： Thomas E. Cornelius , Benedict S. Curatolo
DOI:
关键词:
摘要: A security and tracking apparatus includes at least a first signaling unit second unit, wherein the is adapted for transmitting location of each when units are separated by more than preselected distance. method to locate person, animal, or object, providing in contact with close proximity respective identifying distance; activating transmit units.
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