The following uses are prohibited in a F intermediate manufacturing district.
   (a)   Dwellings.  Dwellings and residences of any kind, including motels and trailer parks, also schools, hospitals, clinics and other institutions of human care, except where they are incidental to a permitted principal use; provided, that any of the aforesaid uses legally existing in the F district on April 26, 1968, or at the time of adoption of any amendment thereto, shall not be classified as a nonconforming use.
   (b)   Business and services. Retail business, personal and business service establishments of any kind, except the following:
      (1)   Restaurants or cafeterias and refreshments or tobacco stands where incidental and accessory to principal use;
      (2)   Animal hospitals;
      (3)   Storage and equipment yards;
      (4)   Automobile service stations and repair garages; and
      (5)   Union halls.
(Ord. 2046, passed 4-11-1968; Ord. 2691, passed 2-12-1979)