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发明名称
Heat-exchange apparatus
摘要
申请公布号
US1770254(A)
申请公布日期
1930.07.08
申请号
US19290345835
申请日期
1929.03.09
申请人
RICHARD SELIGMAN
发明人
SELIGMAN RICHARD
分类号
A23L3/20
主分类号
A23L3/20
代理机构
代理人
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地址
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