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发明名称
FORMATION OF HOLLOW BODY
摘要
申请公布号
JPH02251319(A)
申请公布日期
1990.10.09
申请号
JP19890073606
申请日期
1989.03.24
申请人
KUROKI KOGYOSHO:KK
发明人
KUROKI TAKANORI
分类号
B21D17/02
主分类号
B21D17/02
代理机构
代理人
主权项
地址
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