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发明名称
Method for increasing the strength of sandwich materials having foamed polymeric cores
摘要
申请公布号
US3243484(A)
申请公布日期
1966.03.29
申请号
US19630290078
申请日期
1963.06.24
申请人
KOPPERS COMPANY, INC.
发明人
IMMEL RICHARD H.
分类号
B29C44/20;B29C44/34
主分类号
B29C44/20
代理机构
代理人
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