It shall be unlawful for any persons for themselves, or as agent or employee of another, to transact and carry on any business, trade, profession, calling or occupation within the city, unless:
(A) The business activity has been duly licensed, as herein provided; and
(B) The license is valid at the time of the transaction.
(Ord. 96-07-597, passed 5-15-1997) Penalty, see § 110.99