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Karl Frei
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Wil, CH
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last 30 patents
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Patent Grant
Defoaming device for a packaging machine
Patent number
6,694,705
Issue date
Feb 24, 2004
Tetra Laval Holdings & Finance, SA
Karl Frei
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Patent Grant
Process and device for sifting, sorting, screening, filtering or si...
Patent number
5,653,346
Issue date
Aug 5, 1997
Telsonic AG
Karl Frei
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL