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发明名称
FIRE-RESISTANT BOARD MATERIAL
摘要
申请公布号
CA753152(A)
申请公布日期
1967.02.21
申请号
CAD753152
申请日期
申请人
ERNST H. B. NYSTROM
发明人
ERNST H. B. NYSTROM
分类号
主分类号
代理机构
代理人
主权项
地址
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