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发明名称
Defrosting means
摘要
申请公布号
US2272302(A)
申请公布日期
1942.02.10
申请号
US19390271833
申请日期
1939.05.05
申请人
KRACKOWIZER HERMANN J
发明人
KRACKOWIZER HERMANN J.
分类号
F25D21/00;F25D21/12
主分类号
F25D21/00
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代理人
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