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发明名称
Safety device
摘要
申请公布号
US2701075(A)
申请公布日期
1955.02.01
申请号
US19510262112
申请日期
1951.12.17
申请人
BLACK, SIVALLS & BRYSON, INC.
发明人
COFFMAN ROBERT S.
分类号
F16K17/16
主分类号
F16K17/16
代理机构
代理人
主权项
地址
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