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发明名称
Improvements in or relating to gas-tight furnace heads for drum or rotary tube furnaces
摘要
申请公布号
GB519999(A)
申请公布日期
1940.04.11
申请号
GB19380029341
申请日期
1938.10.10
申请人
METALLGESELLSCHAFT AKTIENGESELLSCHAFT
发明人
分类号
F27B7/00
主分类号
F27B7/00
代理机构
代理人
主权项
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