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Application filed by Theodor Broch UngerfiledCriticalTheodor Broch Unger
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Publication of DK55770CpublicationCriticalpatent/DK55770C/en
DK55770D1934-12-211935-12-17
Procedure and Means for Treatment of Iron Constructions for Protection against Mechanical and Chemical Impact.
DK55770C
(en)