(19)
(11) EP 0 444 034 A1

(12)

(43) Date of publication:
04.09.1991 Bulletin 1991/36

(21) Application number: 89906865.0

(22) Date of filing: 31.05.1989
(51) International Patent Classification (IPC): 
H04R 9/ 00( . )
H04R 7/ 22( . )
H04R 9/ 04( . )
H04R 7/ 12( . )
H04R 9/ 02( . )
H04R 9/ 06( . )
(86) International application number:
PCT/US1989/002374
(87) International publication number:
WO 1990/004317 (19.04.1990 Gazette 1990/09)
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 03.10.1988 US 19880251836

(71) Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Northridge, CA 91329 (US)

(72) Inventor:
  • HOUSE, William, Neal
    Bloomington, IN 47401 (US)

(74) Representative: Barlow, Roy James, et al 
J.A. KEMP & CO. 14, South Square Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)

   


(54) ELECTRODYNAMIC TRANSDUCER STRUCTURE