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发明名称
Pipe structure
摘要
申请公布号
US1874303(A)
申请公布日期
1932.08.30
申请号
US19310513602
申请日期
1931.02.05
申请人
THE METROPOLITAN PAVING BRICK COMPANY
发明人
KANENGEISER FRED R.
分类号
F16L9/08
主分类号
F16L9/08
代理机构
代理人
主权项
地址
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