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发明名称
摘要
申请公布号
SE331748(B)
申请公布日期
1971.01.11
申请号
SED1251269
申请日期
1969.09.11
申请人
NETTELBERG J
发明人
NETTELBERG J
分类号
E06B1/34;(IPC1-7):06B1/34
主分类号
E06B1/34
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