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Per Larsson
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S-774 00 Avesta, SE
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last 30 patents
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Patent Grant
Filters employing "filling bodies" to reduce the amount of backwash...
Patent number
5,972,228
Issue date
Oct 26, 1999
Kvaerner Pulping Technologies AB
Magnus Ingelman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Filter with spray cake removal means
Patent number
5,759,397
Issue date
Jun 2, 1998
Caustec AB
Per Helge Larsson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Filter for continuous filtration
Patent number
5,151,176
Issue date
Sep 29, 1992
Kent Strid
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL