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发明名称
Clearing device for air ducts in the lip of casting pots
摘要
申请公布号
US2330656(A)
申请公布日期
1943.09.28
申请号
US19410390206
申请日期
1941.04.24
申请人
ADOLF ZUNZER
发明人
ZUNZER ADOLF
分类号
B41B11/52
主分类号
B41B11/52
代理机构
代理人
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地址
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