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发明名称
Plaster board
摘要
申请公布号
US1837381(A)
申请公布日期
1931.12.22
申请号
US19280289427
申请日期
1928.06.30
申请人
NATIONAL GYPSUM COMPANY
发明人
TURNER JOHN J.
分类号
B28B19/00
主分类号
B28B19/00
代理机构
代理人
主权项
地址
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