It shall be unlawful for any taxicab to operate in the municipality unless it is equipped with four-wheel brakes, front and rear lights, safe tires, horn, muffler, windshield wipers, and rear-view and side-view mirrors, all of which shall conform to the requirements of state law. Each taxicab shall be equipped with a handle or latch or other opening device attached to each door of the passenger compartment so that such doors may be operated by the passenger from the inside of the taxi cab without the intervention or assistance of the driver. The motor and all mechanical parts shall be kept in such condition or repair as may be reasonably necessary to provide for the safety of the public and the continuous satisfactory operation of the taxicab. Each taxicab, while operating, shall have on each side, in letters readable form a distance of fifty (50) feet, the name of the licensee. If more than one taxicab is operated by a licensee, each taxicab shall be designated by a different number, and such number also shall appear on each side of such taxicab (Ord. #849, 05/05/94).