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发明名称
TRENCH DIGGER
摘要
申请公布号
CA536983(A)
申请公布日期
1957.02.12
申请号
CAD536983
申请日期
申请人
TONY A. LIPPIS
发明人
TONY A. LIPPIS
分类号
主分类号
代理机构
代理人
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