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发明名称
摘要
申请公布号
FR2218444(B1)
申请公布日期
1978.08.04
申请号
FR19730006408
申请日期
1973.02.19
申请人
PROTECTAL SA
发明人
分类号
E04B2/78;E04H1/12;(IPC1-7):E04B1/60
主分类号
E04B2/78
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