(a) No person shall drive any motor vehicle, other than a bus, with any sign, poster or other nontransparent material upon the front windshield, sidewings, side or rear windows of such vehicle other than a certificate or other paper required to be displayed by law, except that there may be in the lower right-hand corner of the windshield a sign or poster not to exceed four inches in height by six inches in width.
(b) The windshield on every motor vehicle shall be equipped with a device for cleaning rain, snow or other moisture from the windshield, which device shall be maintained in good working order and so constructed as to be controlled or operated by the operator of the vehicle.
(ORC 4513.24)
(c) The windshield on every motor vehicle, except motorcycles, shall be equipped with a device such as a defroster, to clear the front windshield of frost, snow, condensation or any other type moisture that might collect on a windshield. Such device shall be maintained in good working order and so constructed as to be controlled as operated by the operator of the vehicle.