Subject to additional definitions contained in subsequent provisions of this chapter which are applicable to specific provisions of this chapter, the following words and phrases when used in this chapter shall have, unless the context clearly indicates otherwise, the meanings given to them in this section:
"Deprive."--
"Firearm." Any weapon that is designed to or may readily be converted to expel any projectile by the action of an explosive or the frame or receiver of any such weapon.
"Government." The United States, any state, county, municipality, or other political unit, or any department, agency or subdivision of any of the foregoing, or any corporation or other association carrying out the functions of government.
"Movable property." Property the location of which can be changed, including things growing on, affixed to, or found in land, and documents although the rights represented thereby have no physical location. "Immovable property" is all other property.
"Obtain."--
"Property of another." Includes property in which any person other than the actor has an interest which the actor is not privileged to infringe, regardless of the fact that the actor also has an interest in the property and regardless of the fact that the other person might be precluded from civil recovery because the property was used in an unlawful transaction or was subject to forfeiture as contraband. Property in possession of the actor shall not be deemed property of another who has only a security interest therein, even if legal title is in the creditor pursuant to a conditional sales contract or other security agreement.
18 Pa.C.S. § 3901