4. avoid reference to type or class or a particular number or a product from a particular source, you may not use the names or trade marks or numbers contained in the catalogues.
4. Avoid reference to the type or class or a particular number or a product from a particular source may not use names, trademarks, figures contained in catalogs.
4. Avoid references to the type or class or a particular number or product from a given source names or trademarks may not be used or the figures contained in the catalog.