Risto O. Mikkonen

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Savonlinna, FI

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Patents Grantslast 30 patents

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