{"id":"000030811","type":"book","title":"Paleolithic patent No. 1. - Washington, D.C. enth.: Biographical note / by A. D. MacFadyen","container-title":"Journal of the Patent Office Society ; May. 1937, S. 346-350 : 1 Ill","author":[{"family":"Langford","given":"George"}],"issued":{"raw":"1937"}}