As used in this article, "junk dealer" includes any person engaged in the business of buying, selling and dealing in junk, any person purchasing, gathering, collecting, soliciting or traveling about from place to place procuring junk, and any person operating, carrying on, conducting or maintaining a junk yard or place where junk is gathered together and stored or kept for shipment, sale or transfer.
Ca. Bus. and Prof'l. Code § 21601