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发明名称
Druckluftschallsignalgeber
摘要
申请公布号
DE567020(C)
申请公布日期
1932.12.27
申请号
DE1931K122175D
申请日期
1931.09.18
申请人
FRIED. KRUPP GERMANIAWERFT AKT.-GES.
发明人
MAASS KARL;SCHWEN WILLI
分类号
B61L5/20
主分类号
B61L5/20
代理机构
代理人
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地址
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