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发明名称
Joint cleaning and filling machine
摘要
申请公布号
US3020813(A)
申请公布日期
1962.02.13
申请号
US19560599594
申请日期
1956.07.23
申请人
GROSS CHARLES P
发明人
GROSS CHARLES P.
分类号
E01C23/09
主分类号
E01C23/09
代理机构
代理人
主权项
地址
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