(19)

(11)

EP 0 165 991 A1

(12)

(43) Date of publication: 02.01.1986 Bulletin 1986/01 (21) Application number: 85900543.0 (22) Date of filing: 18.12.1984

(51) International Patent Classification (IPC):  B25B 13/ 46( . ) (86) International application number: PCT/US1984/002081 (87) International publication number: WO 1985/002806 (04.07.1985 Gazette 1985/15)

(84) Designated Contracting States: AT CH DE FR GB LI NL SE (30) Priority: 21.12.1983 US 19830563998 (71) Applicant: MAYER, Albin F. Eagan, MN 55121 (US)	(72) Inventor: MAYER, Albin F. Eagan, MN 55121 (US)