If goods have not been fully incorporated so as to become real property, but have become so related to particular real property that an interest in them arises under the real property law of the state in which the real property is situated, such goods are defined by the UCC as “fixtures”. In the event that there is any doubt as to whether particular goods are or are to become fixtures, appropriate filings should be made with both the Secretary of State and the County Clerk of the county or counties where the relevant fixture is located.