Any bond given by any person or corporation to the city under any license ordinance shall, before a license is granted, be approved by the mayor unless otherwise provided by ordinance; and unless otherwise provided all said bonds shall be signed either by a responsible surety company or by two (2) good and sufficient sureties, and shall be conditioned for the due observance of all provisions of this code regulating or relating to any such business or occupation, which now are or may be in force during the period of such license. Said bond shall, unless otherwise provided by ordinance, be filed with the city clerk. (R.O. 1959, Ch. 24, Art. 1, Sec. 14)