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Priority to JP388879UpriorityCriticalpatent/JPS6211121Y2/ja
Publication of JPS55106401UpublicationCriticalpatent/JPS55106401U/ja
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Publication of JPS6211121Y2publicationCriticalpatent/JPS6211121Y2/ja
Fault diagnosis apparatus for brake of train and automatic train operation equipment due to the reduction braking performance using the same and fault diagnosis method for brake of train