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发明名称
FOERFARANDE FOER ATT SKYDDA LEDNINGSSYSTEMET I OLJEKAELLOR MOT OLYCKOR ELLER SABOTAGE.
摘要
申请公布号
FI921235(A0)
申请公布日期
1992.03.20
申请号
FI19920001235
申请日期
1992.03.20
申请人
PORRAS, PETRI;LAHTI, HEIKKI/
发明人
PORRAS, PETRI;LAHTI, HEIKKI
分类号
E21B;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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