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发明名称
Vorrichtung zum Abgeben bestimmter Mengen eines Mediums, insbesondere von koernigem Gut
摘要
申请公布号
DE491439(C)
申请公布日期
1930.02.10
申请号
DE1927P056181D
申请日期
1927.09.13
申请人
DR. JOSEF PETRI
发明人
分类号
G01F13/00
主分类号
G01F13/00
代理机构
代理人
主权项
地址
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