Let (O, E, U, V) be the coordination quadruple of the projective Klingenberg plane (PK-plane) coordinated with dual quaternion ring Q(ε)where Q is any quaternion ring over a field. In this paper, we define addition and multiplication of points on the line OU = [0, 1, 0] geometrically, also we give the algebraic correspondences of them. Finally, we carry over some well-known properties of ordinary addition and multiplication to our definition. MSC: 51C05; 51N35; 14A22; 16L30