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发明名称
Portable fire alarm
摘要
申请公布号
US2446794(A)
申请公布日期
1948.08.10
申请号
US19470764821
申请日期
1947.07.30
申请人
THORNTON RUDOLPH B
发明人
THORNTON RUDOLPH B.
分类号
G08B17/04
主分类号
G08B17/04
代理机构
代理人
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地址
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