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发明名称
Improvements in and relating to interlocking devices for securing scaffold tubes and the like
摘要
申请公布号
GB363047(A)
申请公布日期
1931.12.17
申请号
GB19300031393
申请日期
1930.10.20
申请人
WILLIAM ARTHUR JOHNSTON;EDWARD LE BAS
发明人
分类号
E04G7/18
主分类号
E04G7/18
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