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发明名称
Akustische Signaleinrichtung fuer Landmaschinen, insbesondere fuer Pflanzensetzmaschinen
摘要
申请公布号
DE1015250(B)
申请公布日期
1957.09.05
申请号
DE1953H015110
申请日期
1953.01.21
申请人
FA. FRITZ HOWALDT
发明人
SCHROEDER WALTHER;STEFFEN ERICH
分类号
主分类号
代理机构
代理人
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