293 N.W. 243 STATE EX REL. NORTHWEST AIRLINES, INC. v. MINNESOTA TAX COMMISSION AND OTHERS.[1] No. 32,377.Supreme Court of Minnesota. July 12, 1940. [1] Reported in 293 N.W. 243. Taxation — income tax — refundment of overpayment. A taxpayer’s claim for refundment of income taxes covering the first six months of 1933 and paid on […]