Inventions and HADIR documents from 1957 and 1958
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1. HADIR, welded tubes, 1958, 2. descriptive memorandum filed in support of an application for an Invention Patent for strip thickness adjustment during rolling, stamped by the HADIR Library, 1957.
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Automatically translated by DeepL. The original version is the only legally valid version. To see the original version, switch to the French language.
