A mirrored arc geometrical arrangement of two conductors configured to perform similar functions as a traditional twisted pair of wires is presented. In particular, the supporting frame including a first frame including a hinge connecting portion, a second frame configured to slidingly move with respect to the first frame, and an assistance force sensing portion on at least one of the first frame and the second frame may be provided. Manufacturing process for a variant of the bottle opener thereto. Alternatively, the conically-shaped section may be its own sub-assembly secured above the flex-joint. This specific cavity-enclosing door may form a closed position relative to the internal fuselage cavity to enclose all of the landing gears and bombs therein. The CML-CMOS converter includes a reference level shifting unit configured to receive a CML signal swinging about a first reference level to shift a swing reference level to a second reference level; and an amplifying unit configured to amplify an output signal of the reference level shifting unit to output the amplified signal as a CMOS signal.