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摘要
申请公布号
SE329836(B)
申请公布日期
1970.10.26
申请号
SE19670008074
申请日期
1967.06.08
申请人
NV PHILIPS
发明人
VAN DER GIESSEN A;HUIZINGA F
分类号
C01G49/06;G11B5/706;(IPC1-7):C01G49/06
主分类号
C01G49/06
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