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发明名称
Improvements in tubular metal fencing standards
摘要
申请公布号
GB523962(A)
申请公布日期
1940.07.26
申请号
GB19390001683
申请日期
1939.01.18
申请人
JOHN WILLIAM EDWARD BETTLES;WILLIAM NORRIS WINN
发明人
分类号
B21D26/02;B21D26/033
主分类号
B21D26/02
代理机构
代理人
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