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发明名称
SCORED WALLBOARD
摘要
申请公布号
CA413948(A)
申请公布日期
1943.07.20
申请号
CAD413948
申请日期
申请人
BARCLAY MANUFACTURING CO.
发明人
HARRY FEDER
分类号
主分类号
代理机构
代理人
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