drawing board for the alidade of the plane table equipment, consisting essentially of the plane table board as a base for drawing and the plane table head which contains devices for levelling and orientating the plane table board, alidaadi lauaseadme joonestuslaud, mis koosneb peamiselt tasapinnalisest lauaplaadist joonise alusena ja tasapinnalisest lauapeast, mis sisaldab seadisi tasapinnalise lauaplaadi loodimiseks ja suunamiseks