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经营范围
发明名称
DEFROST CONTROL
摘要
申请公布号
US3681933(A)
申请公布日期
1972.08.08
申请号
USD3681933
申请日期
1970.08.20
申请人
DYNAMICS CORP. OF AMERICA
发明人
FRANK T. CHECK JR.
分类号
F25D21/00;(IPC1-7):F25D21/06
主分类号
F25D21/00
代理机构
代理人
主权项
地址
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