发明名称 POWER DRIVABLE CHUCK
摘要 <p>A power drivable chuck (30) includes a body (72) which is formed with a shank-receiving opening (34) having a triangular cross section. The opening (34) is formed to receive a hexagonal shank (38) and triangular shanks (44 and 52).</p>
申请公布号 WO2001014089(A1) 申请公布日期 2001.03.01
申请号 US2000019947 申请日期 2000.07.21
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