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发明名称
Pressure-relief device
摘要
申请公布号
US1781227(A)
申请公布日期
1930.11.11
申请号
US19280306254
申请日期
1928.09.15
申请人
HELM CLYDE D
发明人
HELM CLYDE D.
分类号
G05D16/18
主分类号
G05D16/18
代理机构
代理人
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