Section 20-302. Equipment to be listed

Each  manufacturer or jobber of
  devices aiding locksmiths in their trade shall file a list of his or her
  equipment  with  the  department  and  with   the   police   department,
  enumerating  in  such list all master key blanks, code books, machinery,
  skeleton keys that open and operate more than one lock and known to  the
  trade as pressure keys, key sets for automobiles, vibrating lockpickers,
  and all similar equipment in his or her possession. It shall be unlawful
  to  dispose  of  any  such equipment to any person other than a licensed
  locksmith.