My attemps to make the Wikipedia a more colorful place - photos taken by myself added to various article. My cameras: Sony DSC-U10 and Nikon F55, older photos were taken with a Olympus Mju 2.
... device 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 ...