| http://www.w3.org/ns/prov#value | - Referring now to the enclosed drawings, the apparatus employing the system object of the present invention is mainly composed, in a preferred embodiment, of two parts: one electronic units M and one electromgnetic radio frequency field F. In more detail, in FIG. 1, At symbolizes the transmitting antenna connected with the radio frequency oscillator T and Ar simbolyzes the receiving antenna connect
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