As used in this chapter, the following terms shall have the meanings indicated:
Any discarded or salvageable article or material, including, but not limited to, scrap metal, paper, rags, glass, containers, scrap wood, motor vehicles, trailers, machinery and equipment, with the exceptions of farm machinery and mobile homes or house trailers which are occupied or are properly placed and planned for occupancy.
Any person who buys, sells, salvages, stores or in any way deals in junk or owns, leases, operates or maintains a junkyard within the municipality.
Any place where junk is stored or accumulated. Any premises having two or more unlicensed motor vehicles and/or unlicensed trailers thereon shall be deemed to be a junkyard, except that the foregoing shall not apply to duly licensed automobile dealers having operable vehicles on their premises for resale. Such exception shall not apply to inoperable vehicles being stored primarily for salvage purposes.