Klaus Liethschmidt

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Frechen-Grefrath, DE

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Patents Grantslast 30 patents

Information Patent Grant
Kiln furniture
- Patent number 4,715,812
- Issue date Dec 29, 1987
- Elektroschmelzwerk Kempten GmbH
- Alfred G. von Matuschka
- B28 - WORKING CEMENT, CLAY, OR STONE