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发明名称
Door construction
摘要
申请公布号
US2595975(A)
申请公布日期
1952.05.06
申请号
US19470777055
申请日期
1947.09.30
申请人
JOHN NOTHDURFT
发明人
NOTHDURFT JOHN
分类号
E06B7/02
主分类号
E06B7/02
代理机构
代理人
主权项
地址
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