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经营范围
发明名称
Deluge valve
摘要
申请公布号
US2485091(A)
申请公布日期
1949.10.18
申请号
US19450571734
申请日期
1945.01.08
申请人
ROCKWOOD SPRINKLER COMPANY
发明人
FREEMAN HOWARD G.
分类号
F16K1/20
主分类号
F16K1/20
代理机构
代理人
主权项
地址
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