A separate license shall be required for each and every mechanical amusement device which is displayed by any person at any one time, but any licensee may change from the display of one approved mechanical amusement device to the display of another approved mechanical amusement device at any time. A license issued under the provisions of this chapter shall not be transferred from one person to another person, but such license may be transferred by the licensee therein named from the place specified in such license to another place owned by such licensee, should the licensee move his business from the address specified in the license to another location. No license shall be issued for display of a mechanical amusement device at a place which is within 400 feet from any premises occupied by any school building, unless the occupant of such premises holds a current permit issued by the Ohio Department of Liquor Control for the sale of beer, wine and liquor on the premises. It shall be the duty of the licensee to conspicuously display the license issued hereunder.