Nils G. Virving

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Vallingby, SW

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Patents Grantslast 30 patents

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Electrically controlled system for regulating the grinding space in...
- Patent number 4,073,442
- Issue date Feb 14, 1978
- Defibrator Aktiebolag
- Nils G. Virving
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...