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| Bergrohr GmbH Siegen Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110146366 | PRODUCTION-OPTIMIZED PROCESS FOR PRODUCING A MULTILAYER PIPE - A process for producing a multilayer pipe ( | 06-23-2011 |
| 20090293981 | MULTI-LAYER PIPE AND METHOD FOR ITS MANUFACTURE - A method for manufacture of a multi-layer pipe ( | 12-03-2009 |
| 20090288467 | MULTI-LAYER PIPE AND METHOD FOR ITS MANUFACTURE - A method for manufacture of a multi-layer pipe ( | 11-26-2009 |