Stephan M. Perren

citizen of Zermatt, Davos

Commercial register

AO Forschungsinstitut Davos

Chair of the board of directors · joint signature by two · Davos

until Dec 23, 1999

Chair of the board of directors · joint signature by two

until Mar 20, 1997

sole signature

until Jul 1, 1996
SYNBONE AG

Member of the board of directors · joint signature by two · Zizers

until Apr 4, 1997