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经营范围
发明名称
GYPSUM BOARD MAKING APPARATUS
摘要
申请公布号
CA334202(A)
申请公布日期
1933.07.18
申请号
CAD334202
申请日期
申请人
THE UNIVERSAL GYPSUM AND LIME CO.
发明人
WILLIAM K. NELSON
分类号
主分类号
代理机构
代理人
主权项
地址
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