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经营范围
发明名称
Straight beams and their production
摘要
申请公布号
GB2315503(B)
申请公布日期
2000.04.12
申请号
GB19960015643
申请日期
1996.07.25
申请人
DAVID THOMAS * WELLER
发明人
DAVID THOMAS * WELLER
分类号
E04C3/02;E04C3/04;E04C3/06;E04C3/10;E04C3/28;(IPC1-7):B21D47/01;E04C3/00
主分类号
E04C3/02
代理机构
代理人
主权项
地址
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