发明名称 CHUCKING DEVICE
摘要 A pin-type chucking device particularly adapted for use with sheet metal parts, to grip and rotatably drive such parts about an axis is disclosed. The invention is embodied in both external and internal pin chuck constructions.
申请公布号 US3831955(A) 申请公布日期 1974.08.27
申请号 US19720308706 申请日期 1972.11.22
申请人 JOHNSON DIE & ENG CO,US 发明人 PLOTZKE T,US
分类号 B21D28/30;(IPC1-7):B23B31/40 主分类号 B21D28/30
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