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发明名称
Verfahren zur Verbindung der Teile von Signalpfeifen aus Metallblech
摘要
申请公布号
DE489049(C)
申请公布日期
1930.01.11
申请号
DENDATL073278D
申请日期
申请人
LUEBOLD, V. D. CRONE & CO.
发明人
分类号
G10K5/00
主分类号
G10K5/00
代理机构
代理人
主权项
地址
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