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发明名称
SAFETY DOOR FOR PUBLIC BUILDINGS
摘要
申请公布号
CA456992(A)
申请公布日期
1949.05.31
申请号
CAD456992
申请日期
申请人
LORENZO-EUTROPE GRENIER
发明人
LORENZO-EUTROPE GRENIER
分类号
主分类号
代理机构
代理人
主权项
地址
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