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发明名称
Valve accelerating device
摘要
申请公布号
US1883719(A)
申请公布日期
1932.10.18
申请号
US19300450945
申请日期
1930.05.09
申请人
GRIMES SPRINKLER COMPANY, INC.
发明人
GRIMES LESTER A.
分类号
A62C35/64
主分类号
A62C35/64
代理机构
代理人
主权项
地址
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