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发明名称
Improvements in stencils
摘要
申请公布号
GB726961(A)
申请公布日期
1955.03.23
申请号
GB19520026778
申请日期
1952.10.24
申请人
GEOFFREY HERBERT SMITH
发明人
分类号
B43L13/20
主分类号
B43L13/20
代理机构
代理人
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