248 N.W.2d 111 (1976)
PRESTYPE INC., Appellee,
No. 57628.
PRESTYPE INC., Appellee,
v.
John F. CARR d/b/a M B & R Enterprises, Appellant.
No. 57628.
Supreme Court of Iowa.
December 15, 1976.*112 Frank M. Smith and Earl W. Sutton, of Sutton & Nielsen, Des Moines, for appellant.
John E. Landess, of Garten, Garten & Landess, Des Moines, for appellee.
Heard before MOORE, C. J., and MASON, LeGRAND, UHLENHOPP and McCORMICK, JJ.
MASON, Justice.
Defendant appeal