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发明名称
Storm cellar hatch
摘要
申请公布号
US3069731(A)
申请公布日期
1962.12.25
申请号
US19580776595
申请日期
1958.11.26
申请人
GIBSON WILLIAM H
发明人
GIBSON WILLIAM H.
分类号
B63B19/18
主分类号
B63B19/18
代理机构
代理人
主权项
地址
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