(a) "Property" includes, but is not limited to, money, rights to claim refunds or rebates, postal savings deposits, bonds, notes, certificates, policies of insurance, other instruments of value, choses in action, obligations whether written or unwritten, and any thing of value of any nature whatsoever.

(b) "United States" means any officer, agency, department or instrumentality of the United States of America, other than a court, and any corporation organized under its laws.