Crown
years active: 1978 - 1990
Swiss rock band founded by Czech immigrants Jiri Kozel. Kasa Jahn and Petr Netopil. With them, two guitarists played in turns: Patrick Mason (also shortly in Krokus) and David Byron (Uriah Heep).
Members:
Patrick Mason (1978-1981, 1983-1984) , vocal, guitars
Petr Netopil (1978-1985) , guitars
Jiri Kozel "Muzik" (1978-1990) , bass guitar
Karel Jahn "Kasa" (1978-1990) , drums, vocal
David Byron (1981-1982)
Rick Erson, vocal
Patrick Besser, guitars
Urs Haussener, keyboards
Discography:
Crown 79 , Polydor 1979
We Need You , Polydor 1981 , 
All that Rock & Roll Music , Thunderbolt Records, UK 1984 , 
Red Zone , Disctrade, Switzerland 1984 ,
SP / EP:
Tramp / Hot Night , Best I.A. 1990