Commercial district. 1. —horticultural. 2. Apartments in connection with business use. 3. Professional or business offices, agencies, or studios. 4. Personal service shops, including tailor, barber, beauty, dressmaking, shoe repair, hand laundry, or similar shops. 5. Retail stores, shops for custom work or for making articles to be sold at retail on the premises. 6. Offices of veterinarian and kennels. 7. Telephone, telegraph and express offices, railroad station or auto bus passenger station. 8. Any commercial use of the same general character as any of the above permitted uses when authorized as a special exception, but in no case may a building be erected, altered or used, or a lot be occupied or used for any trade, commercial use, or business that is noxious or offensive by reason of odor, dusts, smoke, gas, vibration, illumination, noise, or generation of excess traffic. 9. Accessory use on the same lot with, and customarily incidental to any of the above permitted uses. 10. Commercial signboards not exceeding 20 feet in area used in connection with a permitted business on the property.