Uses permitted in the M-1 District shall be as follows:
(a) Accessory uses, provided that no accessory buildings shall be located in any required yard.
(b) Agriculture
(c) Automobile repair garages, provided that outdoor storage of materials or items being repaired are not within required front yards.
(d) Automobile sales and service businesses including used car lots and repair garages
(e) Billboards.
(f) Bottling works.
(g) Building material sales and contractors' offices
(h) Carpenter or cabinet workshop
(i) Carting, express or hauling establishments.
(j) Commercial dry cleaning plants.
(k) Contractors' establishments and construction equipment dealers, provided that material or equipment is not stored in required front yards.
(l) Copy or Business Center
(m) Distributors' warehouses and wholesale outlets with no outdoor storage, and no processing or fabrication.
(n) Educational facilities, vocational or trade school
(o) Industrial plants manufacturing or assembling the following: boats; small metal products such as bolts, nuts, screws, washers, rivets, nails, etc. ; clothing; drugs and medicines; electrical equipment; glass products from previously manufactured glass; furniture and wood products; and plastic products for production of finished equipment.
(p) Kennels, animal hospitals and veterinary offices provided that outside runs and kennels are not within 400 feet of any residential zoning district.
(q) Lodges and fraternal organizations.
(r) Mobile home and travel trailer sales and service.
(s) Monument works with or without retail outlet on premises.
(t) Offices and activities of an office nature including banks, doctors' and dentists' offices and clinics and other professional and business offices.
(u) Other activities and manufacturing plants having performance characteristics similar to those listed in this section. When the Zoning Administrator has difficulty determining whether or not a proposed use meets the performance characteristics required for this District, he shall have the applicant for the proposed use apply to the Board of Appeals to make the determination.
(v) Parks, playgrounds and community buildings owned or operated by public agencies.
(w) Plant nurseries and greenhouses.
(x) Print shop.
(y) Printing Plant
(z) Radio and television broadcasting stations and towers.
(aa) Repair services and business
(bb) Research, design, engineering, testing, diagnostics and pilot or experimental product development, including but not limited to medical device and alternative energy technologies.
(cc) Sales rooms.
(ee) Utilities, including railroad terminal facilities.
(ff) Utility facilities necessary for local service to the adjacent area.
(gg) Warehouses.