| http://www.w3.org/ns/prov#value | - The apparatus of claim 15, wherein the quadrilateral is a square or rectangle, and wherein one of the four resisters corresponds to a pair of adjacent corner electrodes and the resistor corresponding to the remaining two corner electrodes form a first pair of resisters having substantially the same first resistance value, the remaining two of the four resisters forming a second pair of resisters h
|
