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发明名称
DRUM FOR EXPANDING AND SHRINKING
摘要
申请公布号
JPH05104142(A)
申请公布日期
1993.04.27
申请号
JP19910271115
申请日期
1991.10.18
申请人
DAIDO STEEL CO LTD
发明人
ISHIJIMA AKIO
分类号
B21C47/30
主分类号
B21C47/30
代理机构
代理人
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地址
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