(19)

(11)

EP 0 817 950 A1

(12)

(43) Date of publication: 14.01.1998 Bulletin 1998/03 (21) Application number: 97901573.0 (22) Date of filing: 15.01.1997

(51) International Patent Classification (IPC):  F41G 7/ 26( . ) (86) International application number: PCT/EP1997/000267 (87) International publication number: WO 1997/028416 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: CH DE FR GB IE LI NL SE (30) Priority: 29.01.1996 NL 19961002193 (71) Applicant: HOLLANDSE SIGNAALAPPARATEN B.V. 7550 GD Hengelo (NL)	(72) Inventors: OLBERTZ, Antonius, Hendricus, Maria NL-7555 AE Hengelo (NL) SCHOLZ, John, Arthur NL-7558 GN Hengelo (NL)