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发明名称
Safety device
摘要
申请公布号
US3247691(A)
申请公布日期
1966.04.26
申请号
US19640340333
申请日期
1964.01.27
申请人
SEYMON MARTIN ARTHUR
发明人
MARTIN ARTHUR SEYMON
分类号
E05B65/20;E05B65/24
主分类号
E05B65/20
代理机构
代理人
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