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经营范围
发明名称
Means for automatic defrosting of refrigerating systems
摘要
申请公布号
US2123073(A)
申请公布日期
1938.07.05
申请号
US19320608531
申请日期
1932.04.30
申请人
BELL EDYTHE H
发明人
BELL EDYTHE H.
分类号
F25D21/02
主分类号
F25D21/02
代理机构
代理人
主权项
地址
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