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经营范围
发明名称
Fire extinguisher discharge indicator
摘要
申请公布号
US2703546(A)
申请公布日期
1955.03.08
申请号
US19520325423
申请日期
1952.12.11
申请人
ALLEN SCOTT E
发明人
ALLEN SCOTT E.
分类号
A62C37/50
主分类号
A62C37/50
代理机构
代理人
主权项
地址
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