A separate license must be obtained for each branch establishment or location of the business transacted and carried on and for each separate business at the same location and each license shall authorize the licensee to transact and carry on only the business licensed thereby at the location or in the manner designated in such license; provided, that warehouses and distributing plants and other uses in connection with and incidental to a business licensed under the provisions of this chapter shall not be deemed to be separate places of business or branch establishments.