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发明名称
FREELY EXPANDIBLE COVER AND ITS MANUFACTURE
摘要
申请公布号
JPH03161237(A)
申请公布日期
1991.07.11
申请号
JP19900288270
申请日期
1990.10.25
申请人
GEBR HENNIG GMBH
发明人
KURUTO HENNITSUHI
分类号
B21D53/80;B23Q11/08;F16P1/02
主分类号
B21D53/80
代理机构
代理人
主权项
地址
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