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Application filed by Jens Christian Henrik BendtsenfiledCriticalJens Christian Henrik Bendtsen
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Publication of DK56009CpublicationCriticalpatent/DK56009C/en
DK56009D1937-07-211937-07-21
Procedure and tool for measuring the roughness and hardness of resilient, uneven surfaces, especially paper surfaces.
DK56009C
(en)