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发明名称
METHODS OF BENDING CHANNEL SECTIONS
摘要
申请公布号
GB9024218(D0)
申请公布日期
1990.12.19
申请号
GB19900024218
申请日期
1990.11.07
申请人
HARRIS, CHARLES E;SAMMONS, RONALD C
发明人
分类号
B21D7/06;B21D11/08
主分类号
B21D7/06
代理机构
代理人
主权项
地址
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