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发明名称
Improvements in doors
摘要
申请公布号
GB505523(A)
申请公布日期
1939.05.12
申请号
GB19380011961
申请日期
1938.04.21
申请人
WILHELM ZANZINGER;VIKTOR ZOLLIKOFER
发明人
分类号
E06B3/70
主分类号
E06B3/70
代理机构
代理人
主权项
地址
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