904.01(a) More than One Item Specified in a Class
Generally, if more than one item of goods, or more than one service, is specified in one class in an application, it is usually not necessary to have a specimen for each product or service. When the range of items is wide or contains unrelated articles, the examining attorney may request additional specimen(s) under 37 C.F.R. §2.61(b).
If the goods are a "full line of pharmaceuticals," however, the examining attorney must require the applicant to provide evidence that it uses the mark in connection with pharmaceuticals to treat diseases or health problems in all chapters in the World Health Organization ("WHO") International Statistical Classification of Diseases and Related Health Problems. See 37 C.F.R. §2.61(b).