Martti Tolvanen

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Savonlinna, FI

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Patents Grantslast 30 patents

Information Patent Grant
Pressurized filter
- Patent number 4,264,445
- Issue date Apr 28, 1981
- Enso-Gutzeit Osakeythio
- Juha Lumikko
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Filters with filtrate chamber overflow partitions having plural out...
- Patent number 4,243,533
- Issue date Jan 6, 1981
- Enso-Gutzeit Osakeyhito
- Jaakko Savolainen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL