A. Ahlstrom Corporation

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for treating fiber suspension
- Patent number 5,073,264
- Issue date Dec 17, 1991
- A. Ahlstrom Corporation
- Pasi H. Immonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Discharge apparatus for a silo
- Patent number 4,979,861
- Issue date Dec 25, 1990
- A. Ahlstrom Corporation
- Ossi K. Kilpelainen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Tightening arrangement for packing rings of a packing box
- Patent number 4,936,592
- Issue date Jun 26, 1990
- A. Ahlstrom Corporation
- Kalevi Vaisanen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method and apparatus for separating knots
- Patent number 4,927,529
- Issue date May 22, 1990
- A. Ahlstrom Corporation
- Kaj O. Henricson
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING

Patents Applicationslast 30 patents

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