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发明名称
RETAINER RING MADE OF PLASTIC USED FOR STRETCH FORMING OF SHEET METAL AND MOLDING METHOD THEREOF
摘要
申请公布号
JPS62282732(A)
申请公布日期
1987.12.08
申请号
JP19870122390
申请日期
1987.05.19
申请人
GENERAL MOTORS CORP <GM>
发明人
UIRIAMU ANSONII MAATERU
分类号
B21D25/02;B21D37/10;B29C33/12;B29C39/10
主分类号
B21D25/02
代理机构
代理人
主权项
地址
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