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发明名称
Apparatus for processing a concave work object
摘要
申请公布号
US2740331(A)
申请公布日期
1956.04.03
申请号
US19520289512
申请日期
1952.05.23
申请人
WESTCOTT & THOMSON, INC.
发明人
SCHWARTZ JOSEPH;ACKLEY AMOS
分类号
B23D3/04
主分类号
B23D3/04
代理机构
代理人
主权项
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