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发明名称
APPARATUS FOR REGENERATING DOG HEADING ROOF SUPPORTS
摘要
申请公布号
PL142306(B3)
申请公布日期
1987.10.31
申请号
PL19830244639
申请日期
1983.11.18
申请人
发明人
分类号
B21D;B21D3/16;(IPC1-7):B21D3/16
主分类号
B21D
代理机构
代理人
主权项
地址
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