(19)

(11)

EP 0 972 298 A1

(12)

(43) Date of publication: 19.01.2000 Bulletin 2000/03 (21) Application number: 97930908.5 (22) Date of filing: 04.04.1997

(51) International Patent Classification (IPC)7: H01J 37/32, H01J 37/36 (86) International application number: PCT/RU9700/106 (87) International publication number: WO 9845/871 (15.10.1998 Gazette 1998/41)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicants: Dodonov, Alexander Igorevich Moskovskaya obl., 143500 (RU) Bashkov, Valery Mikhaylovich Moscow, 127562 (RU)	(72) Inventors: Dodonov, Alexander Igorevich Moskovskaya obl., 143500 (RU) Bashkov, Valery Mikhaylovich Moscow, 127562 (RU) (74) Representative: Pfiz, Thomas  Patentanwälte Wolf & LutzHauptmannsreute 93 70193 Stuttgart 70193 Stuttgart (DE)