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发明名称
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摘要
申请公布号
US2751053(A)
申请公布日期
1956.06.19
申请号
US19530338863
申请日期
1953.02.25
申请人
BELL & GOSSETT COMPANY
发明人
BIRKEMEIER HENRY P.
分类号
G08B17/06
主分类号
G08B17/06
代理机构
代理人
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