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.
People in Zimbabwe will be making use of this device at some point in our lifetime. 
( z1 use :ARG0 ( z2 person :location ( z3 country :name ( z4 name :op "Zimbabwe" ) ) ) :ARG1 ( z5 device :mod ( z6 this ) ) :time ( z7 point :mod ( z8 some ) :part-of ( z9 lifetime :poss ( z10 we ) ) ) )