The designation "sidewalk and curb contractor", whenever used in this chapter, shall be deemed to mean the person having a contract with the city for the construction of all sidewalks and curbs ordered by the council and which the owners of the premises in front of or along which same are ordered constructed; while the designations "bonded sidewalk and curb contractor" and "contractor", wherever used in this chapter, shall be deemed to mean any person who, having filed the proper bond and paid the necessary fee, has obtained from the clerk a certificate as a bonded sidewalk and curb contractor. (Ord. 97, 8-5-1910)