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发明名称
Improvements in connection with window sashes and a method of removing same from thewindow frame for window cleaning purposes
摘要
申请公布号
GB437006(A)
申请公布日期
1935.10.22
申请号
GB19350006327
申请日期
1935.02.28
申请人
JOHN LYNCH
发明人
分类号
E06B3/44
主分类号
E06B3/44
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代理人
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