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发明名称
Improvements in manhole covers for enamelled storage tanks
摘要
申请公布号
GB995825(A)
申请公布日期
1965.06.23
申请号
GB19640014916D
申请日期
1964.04.10
申请人
VEB EISEN-UND HUETTENWERK THALE
发明人
KISAN ERICH
分类号
F22B37/22
主分类号
F22B37/22
代理机构
代理人
主权项
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