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Johan G. I. Johansson
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Bellevue, WA, US
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last 30 patents
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Patent Grant
Apparatus for feeding lignocellulose-containing material through a...
Patent number
4,954,221
Issue date
Sep 4, 1990
Sunds Defibrator Aktiebolag
Rolf B. Reinhall
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent Grant
Refining apparatus with radial passageways for steam recovery
Patent number
4,600,475
Issue date
Jul 15, 1986
Sunds Defibrator Aktiebolag
Rolf B. Reinhall
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE