Henning Bierstedt

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Friedersdorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Drilling device for brittle materials
- Patent number 6,402,605
- Issue date Jun 11, 2002
- Hecaeus Quarzglas GmbH & Co. KG
- Uwe Christiansen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR