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经营范围
发明名称
Refrigeration
摘要
申请公布号
US1873237(A)
申请公布日期
1932.08.23
申请号
US19290356338
申请日期
1929.04.19
申请人
WILLIAMS EDWARD T
发明人
WILLIAMS EDWARD T.
分类号
F25B31/00
主分类号
F25B31/00
代理机构
代理人
主权项
地址
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