by the United States government

“ Whenever any person, in the absence of a license agreement, intends to use a copyrighted musical composition upon the parts of instruments serving to reproduce mechanically the musical work, relying upon the compulsory license provision of this title, he shall serve notice of such intention, by registered mail, upon the copyright proprietor at his last address disclosed by the records of the copyright office, sending to the copyright office a duplicate of such notice. ”

“ Destruction of infringing copies and plates.—To deliver up on oath for destruction all the infringing copies or devices, as well as all plates, molds, matrices, or other means for making such infringing copies as the court may order. ”