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发明名称
Countersinking apparatus
摘要
申请公布号
US2669887(A)
申请公布日期
1954.02.23
申请号
US19500179908
申请日期
1950.08.17
申请人
REED ROLLER BIT COMPANY
发明人
REES SHROPSHIRE E.
分类号
B23B41/00;B23B51/10
主分类号
B23B41/00
代理机构
代理人
主权项
地址
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