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发明名称
Valve construction
摘要
申请公布号
US1746927(A)
申请公布日期
1930.02.11
申请号
US19270216265
申请日期
1927.08.29
申请人
FREDERICK BURGMANN CARL
发明人
BURGMANN CARL FREDERICK
分类号
F01L3/08
主分类号
F01L3/08
代理机构
代理人
主权项
地址
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