(a) (1) The testimony of witnesses in inter partes cases may be submitted in the form of an affidavit or a declaration pursuant to § 2.20 and in conformance with the Federal Rules of Evidence, filed during the proffering party's testimony period, subject to the right of any adverse party to elect to take and bear the expense of oral cross-examination of that witness as provided under paragraph (c) of this section if such witness is within the jurisdiction of the United States, or conduct cross-examination
(a)In a single application for a trademark, service mark, and/or collective mark, an applicant may apply to register the same mark for goods, services, and/or a collective membership organization in multiple classes. In a multiple-class application, the applicant must satisfy the following, in addition to the application requirements of § 2.32 for a trademark or service mark, and § 2.44 for collective marks: (1) For an application filed under section 1 or 44 of the Act, identify the goods or services