Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Cycle Co Ltd
Original Assignee
Bridgestone Cycle Co Ltd
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Filing date
Publication date
Application filed by Bridgestone Cycle Co LtdfiledCriticalBridgestone Cycle Co Ltd
Priority to JP55037335ApriorityCriticalpatent/JPS5838257B2/ja
Publication of JPS56134024ApublicationCriticalpatent/JPS56134024A/ja
Publication of JPS5838257B2publicationCriticalpatent/JPS5838257B2/ja
Method for working metallic pipe whose pipe diameter-to-thickness ratio is small, to tapered shape by swaging machine, and stiffening metal fitting device