Robert Spessert

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Bergisch Gladbach, DT

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Patents Grantslast 30 patents

Information Patent Grant
Continuous furnace
- Patent number 4,057,233
- Issue date Nov 8, 1977
- "OFU" Ofenbau-Union GmbH
- Robert Spessert
- F27 - FURNACES KILNS OVENS RETORTS