A clamping tool having a first jaw connected to a pullpush rod and a fixed second jaw connected to a housing which includes a handle disposed opposite the second jaw and arranged along side a grip provided on the housing. The sliding support comprises at least one first inclined wall, lying in a plane parallel to the drawing axis, and at least one dropping channel with axis parallel to the drawing axis and connected to a side end of the same inclined wall, the other side end of the inclined wall being set at a distance from the internal surfaces of the casing. A second library comprises one or more equivalent symbols with Fast Sockets technology having a door interprocess communication mechanism. The resultant data is selectively supplied to a monitor and an electronic viewfinder via a selector or stored in a second frame memory. The interface processors provide data paths for inbound and outbound data flow and operate under the control of instructions stored in an instruction store formed on the semiconductor substrate. The one end part of the third transmission line is connected to the second transmission line at a position where an electrical length is approximately 45\xb0 from the one end part of the second transmission line at the center frequency.