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发明名称
Rahmen und Deckel zum Abdecken von Schächten u.dgl.
摘要
申请公布号
AT266721(B)
申请公布日期
1968.11.25
申请号
AT19660010419
申请日期
1966.11.10
申请人
ING. FRIEDRICH OESTREICHER
发明人
ING. FRIEDRICH OESTREICHER
分类号
E03F
主分类号
E03F
代理机构
代理人
主权项
地址
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