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发明名称
Heat-exchange roll and method of making
摘要
申请公布号
US3187809(A)
申请公布日期
1965.06.08
申请号
US19630250921
申请日期
1963.01.11
申请人
THE INTA-ROTO MACHINE COMPANY, INC.
发明人
SPEARS PAUL G.
分类号
D06C15/08;D21F5/02;F28F5/02
主分类号
D06C15/08
代理机构
代理人
主权项
地址
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