Ake Ekelund

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Helsingborg, SE

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Patents Grantslast 30 patents

Information Patent Grant
Screw conveyor
- Patent number 4,717,014
- Issue date Jan 5, 1988
- AB Siwertell
- Ake Ekelund
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL