Mo. Rev. Stat. § 417.230
Current with changes from the 2023 Legislative Session
Any person who shall engage in or transact any business in this state under a fictitious name, as in sections 417.200 to 417.230 defined, without registering such name as herein required, shall be deemed guilty of a misdemeanor.
§ 417.230, RSMo
RSMo 1939 § 15469