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发明名称
Release valve mechanism
摘要
申请公布号
US2252418(A)
申请公布日期
1941.08.12
申请号
US19390271249
申请日期
1939.05.02
申请人
SHELLEY CLINTON K
发明人
SHELLEY CLINTON K.
分类号
E02D7/10
主分类号
E02D7/10
代理机构
代理人
主权项
地址
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