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发明名称
Wall surfacing unit
摘要
申请公布号
US2150997(A)
申请公布日期
1939.03.21
申请号
US19370127619
申请日期
1937.02.25
申请人
NATIONAL GYPSUM COMPANY
发明人
VENZIE FREDERICK M.
分类号
E04B2/74;E04F13/08
主分类号
E04B2/74
代理机构
代理人
主权项
地址
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