(19)

(11)

EP 0 067 991 A1

(12)

(43) Date of publication: 05.01.1983 Bulletin 1983/01 (21) Application number: 81901409.0 (22) Date of filing: 02.01.1981

(51) International Patent Classification (IPC):  G01S 1/ 02( . ) G01S 3/ 02( . ) (86) International application number: PCT/US1981/000016 (87) International publication number: WO 1982/002432 (22.07.1982 Gazette 1982/18)

(84) Designated Contracting States: DE FR GB (71) Applicant: SULLIVAN, Roger, M. Colorado Springs CO 80906 (US)	(72) Inventor: SULLIVAN, Roger, M. Colorado Springs CO 80906 (US)