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发明名称
Improvements in overhead spring door-closing devices
摘要
申请公布号
GB887201(A)
申请公布日期
1962.01.17
申请号
GB19590037502
申请日期
1959.11.05
申请人
WILLIAM NEWMAN AND SONS LIMITED;NORMAN HAROLD EDGLEY
发明人
分类号
E05F1/10
主分类号
E05F1/10
代理机构
代理人
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地址
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