In this subtitle the following words have the meanings indicated. “Container” means a liquefied petroleum gas container. “Liquefied petroleum gas” means any material which is composed predominately of any of the following hydrocarbons or mixtures of them: Propane; Propylene; Normal butane; Isobutane; or Butylenes. “Mark” includes any name, initial, or other device. “Marked container” means a container which bears on its surface in plainly legible characters the mark of its owner. “Owner” means: Any person who holds a written bill of sale under which title or ownership to a container was transferred to him; or Any manufacturer of a container who has not transferred ownership of the container under a written bill of sale. “Person” includes an individual, corporation, business trust, statutory trust, estate, trust, partnership, association, two or more persons having a joint or common interest, or any other legal or commercial entity.