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发明名称
Notausgangblendenverschluss fuer Luftschutzraeume
摘要
申请公布号
DE692771(C)
申请公布日期
1940.06.26
申请号
DE193601S4043D
申请日期
1936.09.03
申请人
JOHANNES SEIDEMANN
发明人
分类号
E05C21/02;E06B5/14
主分类号
E05C21/02
代理机构
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