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发明名称
Method of manufacturing artificial stone walls
摘要
申请公布号
US2474654(A)
申请公布日期
1949.06.28
申请号
US19480005736
申请日期
1948.02.02
申请人
CARLSON DAVID F
发明人
CARLSON DAVID F.
分类号
B28B7/00;B28B7/24;B28B7/36;B44F9/04;E04G9/10
主分类号
B28B7/00
代理机构
代理人
主权项
地址
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