A variety of devices could be powered selectively from a single-power source carried on the body via multiple power supply signals at different frequencies, according to the patent abstract.
The patent device will cost $120 when it is finally put on the market.
( z1 cost :ARG1 ( z2 device :mod ( z3 patent ) ) :ARG2 ( z4 monetary-quantity :quant 120 :unit ( z5 dollar ) ) :time ( z6 market :ARG1 z2 :mod ( z7 final ) ) )