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发明名称
Förderschnecke mit einem an sich kernlosen Schneckengangkörper.
摘要
申请公布号
CH193328(A)
申请公布日期
1937.10.15
申请号
CHD193328
申请日期
1936.07.02
申请人
FIRMA: J. M. LEHMANN
发明人
LEHMANN FIRMA: J. M.
分类号
主分类号
代理机构
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