(19)

(11)

EP 0 310 635 A1

(12)

(43) Date of publication: 12.04.1989 Bulletin 1989/15 (21) Application number: 88901654.0 (22) Date of filing: 16.02.1988

(51) International Patent Classification (IPC):  A47K 3/ 28( . ) E03C 1/ 06( . ) E03C 1/ 02( . ) (86) International application number: PCT/NL1988/000004 (87) International publication number: WO 1988/006251 (25.08.1988 Gazette 1988/19)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 17.02.1987 NL 19870000391 (71) Applicant: BEETS, Albertus Johannes NL-1078 NH Amsterdam (NL)	(72) Inventor: BEETS, Albertus Johannes NL-1078 NH Amsterdam (NL)