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发明名称
FENCE STRETCHER
摘要
申请公布号
US3620503(A)
申请公布日期
1971.11.16
申请号
USD3620503
申请日期
1969.08.04
申请人
VALLOUREC USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUREC REUNIES
发明人
JACQUES BRO
分类号
E04H17/26;(IPC1-7):E21B19/00;B66F3/00
主分类号
E04H17/26
代理机构
代理人
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