Nils Gustav Leffler

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Sundsvall, SW

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Patents Grantslast 30 patents

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Apparatus for processing liquid-containing substance mixtures, part...
- Patent number 3,985,005
- Issue date Oct 12, 1976
- Sunds Aktiebolag
- Nils Gustav Leffler
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE