Method and device for introducing a connection hole into a wall of a fermenter container for a biogas assembly
- Application ID: EP13005732
- Status: █ GRANT OF PATENT INTENDED
This EP application has the IPC combination B23 (MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR) and B28 (WORKING CEMENT, CLAY, OR STONE). We found, that Patentbüro Paul Rosenich AG, Kehl Ascherl Liebhoff & Ettmayr, Tetzner & Partner mbB, NV Bekaert SA, HILTI AG and 1 other are specialized in this combination either. For a similar patent, they might be a good choice.