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发明名称
Expansion joint
摘要
申请公布号
US2291109(A)
申请公布日期
1942.07.28
申请号
US19390303473
申请日期
1939.11.08
申请人
SENSIBAR JACOB R
发明人
SENSIBAR JACOB R.
分类号
E01C11/12
主分类号
E01C11/12
代理机构
代理人
主权项
地址
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