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经营范围
发明名称
Improvements in or relating to load supporting props
摘要
申请公布号
GB785470(A)
申请公布日期
1957.10.30
申请号
GB19550004341
申请日期
1955.02.14
申请人
W. E. & F. DOBSON LIMITED
发明人
GULLICK ERNEST DONALD MERTON;ALLSOP WILFRED;COWLISHAW FRANK
分类号
E21D15/54
主分类号
E21D15/54
代理机构
代理人
主权项
地址
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