219 N.W. 311 AUGUSTIN HOFFMAN, Appellant, v. EMIL P. HOFFMAN, Appellee. Supreme Court of Iowa. May 8, 1928. WILLS: Right of Devisee — Estoppel. An heir who, upon the death 1 of his mother, becomes entitled to a fractional part of a promissory note in which the mother and father are joint payees does not […]