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发明名称
Improvements in or relating to chucks for machine tools
摘要
申请公布号
GB729051(A)
申请公布日期
1955.05.04
申请号
GB19520019337
申请日期
1952.07.31
申请人
ALFRED CLEAVER
发明人
分类号
B23B31/20
主分类号
B23B31/20
代理机构
代理人
主权项
地址
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