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Application filed by Hermanus Adrianus Van StockumfiledCriticalHermanus Adrianus Van Stockum
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Publication of DK75145CpublicationCriticalpatent/DK75145C/da
DK384650A1949-12-031950-11-30Apparat til periodisk bevægelse af genstande i modsatte retninger ved hjælp af en til en krumtap fastgjort trækline.
DK75145C
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