Leopold Kerney[?], Minister to Madrid involved in conducting negotiations with Germany over Irish neutrality and possible assistance with recovery of the "lost counties" of Ulster
... is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang.
External links
www.gyrotwister.de ...