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发明名称
Cover piece to lay on jointed portions of gutters
摘要
申请公布号
US2682840(A)
申请公布日期
1954.07.06
申请号
US19510225121
申请日期
1951.05.08
申请人
SUPRENANT ARTHUR W
发明人
SUPRENANT ARTHUR W.
分类号
E04D13/064
主分类号
E04D13/064
代理机构
代理人
主权项
地址
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