This is a list of ships of the German navies. The naval forces of Germany have gone through several incarnations; this list organizes alphabetically by name, for when the name is known but the period uncertain.
... 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 ...