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发明名称
摘要
申请公布号
JPH0333842(B2)
申请公布日期
1991.05.20
申请号
JP19830028613
申请日期
1983.02.24
申请人
TOYO DENKO KK;MITSUMA KK
发明人
TAKEMOTO RYOJI;UMEMOTO HIROYUKI
分类号
E01C9/04
主分类号
E01C9/04
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