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发明名称
Verschluss fuer Schutzraumtueren
摘要
申请公布号
DE647174(C)
申请公布日期
1938.03.26
申请号
DENDATK139513D
申请日期
申请人
EDUARD KRAEHMER
发明人
分类号
E05B3/06;E05B65/00
主分类号
E05B3/06
代理机构
代理人
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