(19)

(11)

EP 0 020 329 A1

(12)

(43) Date of publication: 07.01.1981 Bulletin 1981/01 (21) Application number: 78900205.0 (22) Date of filing: 23.10.1978

(51) International Patent Classification (IPC):  B23D 7/ 06( . ) B23Q 35/ 10( . ) (86) International application number: PCT/US1978/000089 (87) International publication number: WO 1980/000805 (01.05.1980 Gazette 1980/10)

(84) Designated Contracting States: CH DE FR GB SE (71) Applicant: FAHRNER, Don A. Huntsville, AL 35801 (US)	(72) Inventor: FAHRNER, Don A. Huntsville, AL 35801 (US)