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摘要
申请公布号
US2726580(A)
申请公布日期
1955.12.13
申请号
US19540410262
申请日期
1954.02.15
申请人
BIGELOW, INC.
发明人
LOWE SYDNEY P.
分类号
B23Q3/06;B24B19/28
主分类号
B23Q3/06
代理机构
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