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发明名称
Fremgangsmåde til fremstilling af perlit-filterhjælpemidler.
摘要
申请公布号
DK99501(C)
申请公布日期
1964.08.17
申请号
DK19620002456
申请日期
1962.06.01
申请人
JOHNS-MANVILLE CORPORATION
发明人
分类号
C01B;(IPC1-7):C01B
主分类号
C01B
代理机构
代理人
主权项
地址
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