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发明名称
Nach dem Zweimaschinensystem arbeitendes Schrapergeraet
摘要
申请公布号
DE591961(C)
申请公布日期
1934.01.30
申请号
DE1931F070377D
申请日期
1931.02.27
申请人
CHARLES HENRY FOWLER;EDWARD BIRRELL
发明人
分类号
E02F3/54
主分类号
E02F3/54
代理机构
代理人
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