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发明名称
Gauging device for ditchers
摘要
申请公布号
US2489196(A)
申请公布日期
1949.11.22
申请号
US19460666718
申请日期
1946.05.02
申请人
REISING FRANCIS M
发明人
REISING FRANCIS M.
分类号
E02F5/14
主分类号
E02F5/14
代理机构
代理人
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