Roland Koch

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Weisswasser, DD

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Patents Grantslast 30 patents

Information Patent Grant
Device for internal welding of pipes or the like
- Patent number 4,500,764
- Issue date Feb 19, 1985
- VEB Gaskombinat Schwarze Pumpe
- Erich Girodi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR