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发明名称
Door construction
摘要
申请公布号
US2166588(A)
申请公布日期
1939.07.18
申请号
US19380221825
申请日期
1938.07.28
申请人
HANS HANSON
发明人
HANSON HANS
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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