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发明名称
Safety guard
摘要
申请公布号
US2440728(A)
申请公布日期
1948.05.04
申请号
US19470738643
申请日期
1947.04.01
申请人
GRANAT BROS.
发明人
SIEGEL NATHAN
分类号
A44C5/18
主分类号
A44C5/18
代理机构
代理人
主权项
地址
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