  In the present paper the authors show that iterations of the Hankel transform
with $\mathscr{K}_{\nu}$-transform is a constant multiple of the Widder
transform. Using these iteration identities, several Parseval-Goldstein type
theorems for these transforms are given. By making use of these results a
number of new Goldstein type exchange identities are obtained for these and the
Laplace transform. The identities proven in this paper are shown to give rise
to useful corollaries for evaluating infinite integrals of special functions.
Some examples are also given as illustration of the results presented here.
