9 N.W.2d 284 PEERLESS WEIGHING VENDING MACHINE CORPORATION, Appellant, v. MARK G. THORNBURG, Secretary of Agriculture, Appellee. No. 46172.Supreme Court of Iowa. May 4, 1943. LICENSES: Automatic scales or weighing machines — chapter 164, 1 C., ’39. Automatic scales or weighing machines which are operated by the insertion of a coin in a slot are […]