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发明名称
Door construction
摘要
申请公布号
US2660766(A)
申请公布日期
1953.12.01
申请号
US19490094780
申请日期
1949.05.23
申请人
PETTERSON JOHN C
发明人
PETTERSON JOHN C.
分类号
E06B3/70
主分类号
E06B3/70
代理机构
代理人
主权项
地址
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