It shall be unlawful for any owner or operator of an electrical musical device to install, operate or maintain to be operated any electrical musical device in the City and County of San Francisco without first having obtained a permit in writing so to do from the Director of Public Works and having the seal of approval as hereinafter provided for, placed on each of said electrical musical devices.
It shall be unlawful to remove said seal of approval from said device to which it was attached, as provided for in this Article, and affix same to another device or machine.
(Added by Ord. 785, App. 8/21/40)