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经营范围
发明名称
Blank holder and die cushion cylinder having separate adjustable pressures
摘要
申请公布号
US2350884(A)
申请公布日期
1944.06.06
申请号
US19400367447
申请日期
1940.11.27
申请人
THE HYDRAULIC DEVELOPMENT CORPORATION, INC.
发明人
ERNST WALTER
分类号
B21D24/02;B21D24/14
主分类号
B21D24/02
代理机构
代理人
主权项
地址
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