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发明名称
Composite board structure
摘要
申请公布号
US2324628(A)
申请公布日期
1943.07.20
申请号
US19410407677
申请日期
1941.08.20
申请人
GUSTAF KAHR
发明人
KAHR GUSTAF
分类号
B27D1/06;B27M3/00;E04C2/12;E04F15/04;H04L17/12
主分类号
B27D1/06
代理机构
代理人
主权项
地址
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