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发明名称
Press
摘要
申请公布号
US2333529(A)
申请公布日期
1943.11.02
申请号
US19400349970
申请日期
1940.08.02
申请人
THE HYDRAULIC DEVELOPMENT CORP., INC.
发明人
ERNST WALTER
分类号
B21D24/14
主分类号
B21D24/14
代理机构
代理人
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