(A) "Junk dealer" means a person having a fixed place of business in the city who is engaged in the business of buying, selling or otherwise dealing in, either at wholesale or retail, old rags, sacks, bottles, cans, papers, metal or other articles commonly described as junk.
(B) "Junk collector" means a person not having a fixed place of business in the city who goes from house to house or from place to place gathering, collecting, buying, selling or otherwise dealing in old rags, sacks, bottles, cans, paper, metal or other articles commonly described as junk.
(`78 Code, § 5.26.010.)