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发明名称
Expansion joint
摘要
申请公布号
US2308757(A)
申请公布日期
1943.01.19
申请号
US19410407123
申请日期
1941.08.16
申请人
UNIVERSAL OIL PRODUCTS COMPANY
发明人
HULSBERG WILLIAM ERNST
分类号
F16L27/12
主分类号
F16L27/12
代理机构
代理人
主权项
地址
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