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经营范围
发明名称
Nonfreezing valve
摘要
申请公布号
US1888130(A)
申请公布日期
1932.11.15
申请号
US19300504401
申请日期
1930.12.23
申请人
HUFFMAN ROSS L
发明人
HUFFMAN ROSS L.
分类号
F16K27/02
主分类号
F16K27/02
代理机构
代理人
主权项
地址
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