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发明名称
Screed
摘要
申请公布号
US2197278(A)
申请公布日期
1940.04.16
申请号
US19390256665
申请日期
1939.02.16
申请人
IVER SVERDAHL
发明人
SVERDAHL IVER
分类号
B25H7/04;E04G21/10
主分类号
B25H7/04
代理机构
代理人
主权项
地址
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