"Commercial unit" means such a unit of goods as by commercial usage is a single whole for purposes of sale and division of which materially impairs its character or value on the market or in use. A commercial unit may be a single article (as a machine) or a set of [...]

"Commercial unit" means such a unit of goods as by commercial usage is a single whole for purposes of lease and division of which materially impairs its character or value on the market or in use. A commercial unit may be a single article, as a machine, or a set of [...]