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发明名称
Metallhaltige Duebelmasse
摘要
申请公布号
DE666699(C)
申请公布日期
1938.10.26
申请号
DE1937D075281D
申请日期
1937.05.08
申请人
FRIEDRICH EDUARD DUERR
发明人
分类号
C04B14/48;C04B40/06
主分类号
C04B14/48
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