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发明名称
Ritzkamm.
摘要
申请公布号
AT157937(B)
申请公布日期
1940.02.10
申请号
ATD157937
申请日期
1936.06.18
申请人
WILHELM BACKHAUS
发明人
WILHELM BACKHAUS
分类号
主分类号
代理机构
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主权项
地址
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