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Walter Hefti
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Winterthur, CH
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last 30 patents
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Patent Grant
Bearing unit, especially for use in a bobbin tube and package support
Patent number
5,020,924
Issue date
Jun 4, 1991
Rieter Machine Works, Ltd.
Robert Demuth
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Bobbin tube and package support and bearing unit therefor and filam...
Patent number
4,848,686
Issue date
Jul 18, 1989
Rieter Machine Works Ltd.
Robert Demuth
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Arrangement for holding yarn packages
Patent number
4,781,333
Issue date
Nov 1, 1988
Maschinenfabrik Rieter AG
Walter Hefti
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Arrangement for holding yarn packages
Patent number
4,718,615
Issue date
Jan 12, 1988
Maschinenfabrik Rieter AG
Walter Hefti
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Device for winding-up a thread
Patent number
4,695,000
Issue date
Sep 22, 1987
Maschinenfabrik Rieter AG
Walter Fretz
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Traversing apparatus for a cutting machine for a synthetic filament...
Patent number
4,399,589
Issue date
Aug 23, 1983
Rieter Machine Works Ltd.
Walter Hefti
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING