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发明名称
Chucks
摘要
申请公布号
US2769644(A)
申请公布日期
1956.11.06
申请号
US19520318975
申请日期
1952.11.06
申请人
DAVOS PRODUCTS CO.
发明人
DENZLER BERTHOLD
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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