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发明名称
CHEMICAL PRINTING ON PLASTERBOARDS
摘要
申请公布号
CA309332(A)
申请公布日期
1931.03.10
申请号
CAD309332
申请日期
申请人
THE UNITED STATES GYPSUM COMPANY
发明人
HARRY E. BROOKBY
分类号
主分类号
代理机构
代理人
主权项
地址
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