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Priority to JP4933784UpriorityCriticalpatent/JPS60161209U/ja
Publication of JPS60161209UpublicationCriticalpatent/JPS60161209U/ja
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Publication of JPH026166Y2publicationCriticalpatent/JPH026166Y2/ja
Threaded fastener with dual reinforcing leads for facilitating manufacture of the fastener, thread rolling die for forming the threaded fastener, and method of manufacturing the threaded fastener