((a)) The expression “article of merchandise” as used in sections 294 to 300 of this title shall signify any goods, wares, works of art, commodity, or other thing which may be lawfully kept or offered for sale.

((b)) The term “person” means an individual, partnership, corporation, or any other form of business enterprise, capable of being in violation of sections 294 to 300 of this title.

((c)) The term “jewelry trade association” means an organization, consisting primarily of persons actively engaged in the jewelry or a related business, the purposes and activities of which are primarily directed to the improvement of business conditions in the jewelry or related businesses.