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Bertil Östbo
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S-151 52 Sodertalje, SE
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last 30 patents
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Patent Grant
Composting arrangement
Patent number
6,335,192
Issue date
Jan 1, 2002
Bertil Östbo
C05 - FERTILISERS MANUFACTURE THEREOF
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Patent Grant
Method and arrangement for composting biodegradable material
Patent number
6,333,190
Issue date
Dec 25, 2001
Bertil Östbo
C05 - FERTILISERS MANUFACTURE THEREOF