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发明名称
Self-closing gate
摘要
申请公布号
US2587287(A)
申请公布日期
1952.02.26
申请号
US19490105746
申请日期
1949.07.20
申请人
CHAMBERLAIN JOHN W
发明人
CHAMBERLAIN JOHN W.
分类号
E06B11/02
主分类号
E06B11/02
代理机构
代理人
主权项
地址
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