No license shall be issued for any device to be used or operated in any building or place within 300 feet of the grounds of any school, during the hours that the school is in session and one-half hour before and one-half hour after, except that this section shall not be applicable to electrical phonographs. [Ord. 2789 § 1, 1990; Code 1970 § 5.20.050; Code 1954 § 3-10.20.]