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发明名称
Low pressure refrigerating systems
摘要
申请公布号
US2952137(A)
申请公布日期
1960.09.13
申请号
US19590784683
申请日期
1959.01.02
申请人
WATKINS JOHN E
发明人
WATKINS JOHN E.
分类号
F25B41/00
主分类号
F25B41/00
代理机构
代理人
主权项
地址
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