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发明名称
Safety valve for boiling vessels
摘要
申请公布号
US1811151(A)
申请公布日期
1931.06.23
申请号
US19300427893
申请日期
1930.02.12
申请人
JAKOB PFOTZER
发明人
PFOTZER JAKOB
分类号
D21C7/16
主分类号
D21C7/16
代理机构
代理人
主权项
地址
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