A township may not enact an ordinance imposing a license fee upon a manufacturer, including an agent, representative, or employe of any manufacturer, who is a resident of the Commonwealth and solicits orders for or sells personal property manufactured within this Commonwealth if the township could not legally impose the same license fee upon a manufacturer, including an agent, representative or employee, that is a nonresident of the Commonwealth and solicits orders for or sells personal property manufactured outside this Commonwealth.
53 P.S. § 57912