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发明名称
Door construction
摘要
申请公布号
US2721610(A)
申请公布日期
1955.10.25
申请号
US19520281496
申请日期
1952.04.10
申请人
LOUIS GRANDGENT
发明人
GRANDGENT LOUIS
分类号
E06B3/48
主分类号
E06B3/48
代理机构
代理人
主权项
地址
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