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Stig B. H. Zetterqvist
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Sundsbruk, SE
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last 30 patents
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Apparatus for gas or liquid admixture
Patent number
4,416,548
Issue date
Nov 22, 1983
Sunds Defibrator Aktiebolag
Olof G. Carre
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE