A plate having wells therein for receiving chemical substances is provided with a coverplate covering said filled wells. The process for sealing the wells by providing a joining seam running around the wells provides the joining seam such that it has a profiled cross-section in order to increase the...http://www.google.de/patents/US5582665?utm_source=gb-gplus-sharePatent US5582665 - Process for sealing at least one well out of a number of wells provided in a plate for receiving chemical and/or biochemical and/or microbiological substances, and installation for carrying out the process
