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经营范围
发明名称
Heat exchanger
摘要
A conveying screw having a tubular helical flight attached only at its opposite end portions to a hollow conveying screw body. Heat exchange medium introduced into the hollow body is transferred along the tubular helical flight.
申请公布号
US4856580(A)
申请公布日期
1989.08.15
申请号
US19870114837
申请日期
1987.10.30
申请人
BERWIND CORPORATION
发明人
LEY, RICHARD A.
分类号
F28D11/02;B65G33/26;F28F5/06
主分类号
F28D11/02
代理机构
代理人
主权项
地址
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