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发明名称
X-RAY SCREENING MATERIALS
摘要
申请公布号
GB1603654(A)
申请公布日期
1981.11.25
申请号
GB19770033789
申请日期
1978.05.31
申请人
WARDRAY PROD CLERKENWELL LTD
发明人
分类号
B32B27/18;G21F3/03;(IPC1-7):B32B27/06
主分类号
B32B27/18
代理机构
代理人
主权项
地址
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