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发明名称
Road joint and method of making same
摘要
申请公布号
US1926516(A)
申请公布日期
1933.09.12
申请号
US19300438135
申请日期
1930.03.22
申请人
PITTSBURGH STEEL COMPANY
发明人
EDGE WALTER S.
分类号
E01C11/10
主分类号
E01C11/10
代理机构
代理人
主权项
地址
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