Reijo Vauhkonen

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Vihtasuo, FI

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Patents Grantslast 30 patents

Information Patent Grant
Corner joint for building units of stone
- Patent number 5,160,212
- Issue date Nov 3, 1992
- Suomen Vuolukivi Oy
- Reijo Vauhkonen
- F27 - FURNACES KILNS OVENS RETORTS