Mo. Rev. Stat. § 150.470
Current with changes from the 2023 Legislative Session
Whoever shall deal in the selling of patents, patent rights, patent or other medicines, lightning rods, goods, wares or merchandise, except pianos, organs, sewing machines, books, charts, maps and stationery, agricultural and horticultural products, including milk, butter, eggs and cheese, by going about from place to place to sell the same, is declared to be a "peddler".
§ 150.470, RSMo
RSMo 1939 § 14608