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发明名称
Constant-alarm device
摘要
申请公布号
US1762009(A)
申请公布日期
1930.06.03
申请号
US19270175263
申请日期
1927.03.14
申请人
ROCKWOOD SPRINKLER COMPANY
发明人
CARLSON HJALMAR G.
分类号
A62C35/64
主分类号
A62C35/64
代理机构
代理人
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地址
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