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经营范围
发明名称
FORMING APPARATUS AND FLUID SPRING THEREIN
摘要
申请公布号
US3425257(A)
申请公布日期
1969.02.04
申请号
USD3425257
申请日期
1966.03.03
申请人
ELMER F. HEISER
发明人
ELMER F. HEISER
分类号
B21D22/02;(IPC1-7):B21D11/04;B21D22/20;B21D24/02
主分类号
B21D22/02
代理机构
代理人
主权项
地址
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