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发明名称
Paving dowel supporting structure
摘要
申请公布号
US2618038(A)
申请公布日期
1952.11.18
申请号
US19510256939
申请日期
1951.11.17
申请人
STANLEY BALL
发明人
STEWART JAMES S.
分类号
E01C19/50
主分类号
E01C19/50
代理机构
代理人
主权项
地址
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