Minn. Stat. § 386.67: LICENSED ABSTRACTER, SEAL.

A licensed abstracter furnishing abstracts of title to real property under the provisions hereof shall provide a seal, which seal shall show the name of such licensed abstracter, and shall file with the commissioner the signatures of persons authorized to sign certificates on abstracts and continuations of abstracts and certificates showing ownership of, or interest in, or liens upon any lands in the state of Minnesota, whether registered or not, issued by such licensed abstracter.