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发明名称
CIRCUIT OF A SPARK-SAFE HORN
摘要
申请公布号
CS9000570(A3)
申请公布日期
1992.03.18
申请号
CS19900000570
申请日期
1990.02.07
申请人
OSTROJ
发明人
CERNIN VACLAV ING.;PELA JAN ING.
分类号
E21F17/00;E21F17/18;(IPC1-7):E21F17/00
主分类号
E21F17/00
代理机构
代理人
主权项
地址
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