(19)
(11)
EP 0 513 027 A1
(12)
(43)
Date of publication:
19.11.1992
Bulletin 1992/47
(21)
Application number:
91901981.0
(22)
Date of filing:
08.01.1991
(51)
International Patent Classification (IPC):
A01N
25/
26
( . )
(86)
International application number:
PCT/US1991/000015
(87)
International publication number:
WO 1991/010362
(
25.07.1991
Gazette 1991/17)
(84)
Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
(30)
Priority:
12.01.1990
US 19900464434
(71)
Applicant:
E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington Delaware 19898 (US)
(72)
Inventor:
TOCKER, Stanley
Wilmington, DE 19803 (US)
(74)
Representative:
Hildyard, Edward Martin, et al
Frank B. Dehn & Co. European Patent Attorneys Imperial House 15-19 Kingsway
London WC2B 6UZ
London WC2B 6UZ (GB)
(54)
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