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经营范围
发明名称
Collapsible mandrel
摘要
申请公布号
US2503431(A)
申请公布日期
1950.04.11
申请号
US19460713330
申请日期
1946.11.30
申请人
CURTISS-WRIGHT CORPORATION
发明人
BENDER JOSEPH A.;MCKIERNAN JAMES D.
分类号
B21D53/78
主分类号
B21D53/78
代理机构
代理人
主权项
地址
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