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发明名称
Hand bit assembly holder
摘要
申请公布号
US2775341(A)
申请公布日期
1956.12.25
申请号
US19530367497
申请日期
1953.07.13
申请人
WILLIAMS RICHARD J
发明人
WILLIAMS RICHARD J.
分类号
B25F1/02
主分类号
B25F1/02
代理机构
代理人
主权项
地址
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