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发明名称
METHOD FOR FORMING A SHEET METAL JOINT
摘要
申请公布号
US3602980(A)
申请公布日期
1971.09.07
申请号
USD3602980
申请日期
1968.12.23
申请人
ALUMINUM CO. OF AMERICA
发明人
ROBERT E. HEFFNER
分类号
B21D51/38;F16B5/04;(IPC1-7):B21D39/00;B23P11/00
主分类号
B21D51/38
代理机构
代理人
主权项
地址
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