"U.S. Trademark 71205468". Trademark Applications and Registrations Retrieval (TARR). United States Patent and Trademark Office. 18 November 1924. Archived from the original on 10 August 2013. Retrieved 29 October 2011.
"U.S. Trademark 71205468". Trademark Applications and Registrations Retrieval (TARR). United States Patent and Trademark Office. 18 November 1924. Archived from the original on 10 August 2013. Retrieved 29 October 2011.