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发明名称
Vertically swinging closure operator
摘要
申请公布号
US2779589(A)
申请公布日期
1957.01.29
申请号
US19560558125
申请日期
1956.01.09
申请人
N. V. BRONSWERK
发明人
DONGEN DINGEMAN VAN
分类号
E05F15/04
主分类号
E05F15/04
代理机构
代理人
主权项
地址
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