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发明名称
Cement tamping machine
摘要
申请公布号
US2633782(A)
申请公布日期
1953.04.07
申请号
US19500191026
申请日期
1950.10.19
申请人
CLEMENT CLYDE H
发明人
CLEMENT CLYDE H.
分类号
E04G21/06
主分类号
E04G21/06
代理机构
代理人
主权项
地址
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