Anna Spronk-Dik

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Haven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing an airtight and moisture-proof cardboard box
- Patent number 6,056,680
- Issue date May 2, 2000
- Crystal B.V.
- Anna Spronk-Dik
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL