One or two little details about UL labels....
First, there is no requirement that a manufacturer have all of his product carry the UL label. Since UL charges 'per label,' it is not unknown for a manufacturer to offer the same product, either with or without the label. Still, if there is no UL tag ON the product, there is no reason to infer that it's the same as the listed version.
Another fact of commerce is that the actual manufacturer may not want his identity known. For example, it may be preferred that the product carry the name of the vendor, or the distributor. For example, Sears make no products - but try to find the manufacturer's name on any.
In those circumstances, the UL label will have a "File Number" on it, that will allow UL to identify the maker.
