panel for four synoptic manual usable in particular for prezzari for fuel distributors

摘要

panel for synoptic table comprising a fixed rear support plan (3) made along the central axis is horizontal.two rings of attachment (4) which bind with possibility of rotation or reversal of 180 ten cards (5) carrying printed on every front markings representative of half lowerof or the upper half of figures 0 to 9.on the lower half of the front face of said element (3) being reported signs charts acts to play the lower half of the last digit of the sequence of numbers that is possibleand while the front of the first tab is in the down position, does not bring any sign graph, the tabs having an opening (6) which,following the rotation of the tab or flip 180 degree from the position lower than the upper position (a) (b) engages with a small arm (7) of the retention springapplied to the central part of said upper support plan (3), which will hold the card directly in the superior position (b). (figure 1).