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发明名称
Apparat til Fremstilling af Skum, især til Ildslukningsformaal.
摘要
申请公布号
DK45022(C)
申请公布日期
1931.12.21
申请号
DKD45022
申请日期
1929.09.28
申请人
WILHELM GRAAFF
发明人
WILHELM GRAAFF
分类号
主分类号
代理机构
代理人
主权项
地址
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