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Helmer Gustafsson
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Valkeakoski, FI
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Patents Grants
last 30 patents
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Patent Grant
Method for manufacturing an absorbent fibre layer, and an absorbent...
Patent number
5,693,162
Issue date
Dec 2, 1997
Yhtyneet Paperitehtaat Oy
Helmer Gustafsson
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Process and apparatus for dry forming of a material web from a long...
Patent number
5,269,049
Issue date
Dec 14, 1993
Yhtyneet Paperitehtaat Oy, Walkisoft Engineering
Helmer Gustafsson
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Method for forming a dry web on the wire
Patent number
5,068,079
Issue date
Nov 26, 1991
Yhtyneet Paperitehtaat Oy Walkisoft Engineering
Helmer Gustafsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Welded conical grinding cutter
Patent number
4,840,318
Issue date
Jun 20, 1989
Yhtyneet Paperitehtaat oy Jylhavaara
Helmer Gustafsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE