128 A. 734 Dull v. Mitchell, Appellant. Supreme Court of Pennsylvania.March 17, 1925. April 13, 1925. Promissory notes — Suit by endorsee against maker — Defenses — Burden of proof — Oral agreement — Negotiable instruments — Act of May 16, 1901, P. L. 194 — Affidavit of defense. 1. In an action by an […]