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EP 0 538 445 A1

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(43)	Date of publication:
	28.04.1993 Bulletin 1993/17

(21)	Application number: 92910728.0

(22)	Date of filing: 09.04.1992

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International Patent Classification (IPC):

B01F 5/ 24^{( . )}

(86)	International application number:
	PCT/US1992/002890

(87)	International publication number:
	WO 1992/018229 (29.10.1992 Gazette 1992/27)

(84)	Designated Contracting States:
	BE DE ES FR GB IT NL

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Priority:

10.04.1991 US 19910683320
17.01.1992 US 19920822082
27.03.1992 US 19920858704

(71)	Applicant: Avery, Hugh E., Jr.
	Houston, TX 77098 (US)

(72)	Inventor:
	Avery, Hugh E., Jr. Houston, TX 77098 (US)

(74)	Representative: de Bruijn, Leendert C.
	Nederlandsch Octrooibureau P.O. Box 29720 NL-2502 LS Den Haag NL-2502 LS Den Haag (NL)

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