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发明名称
Ground working device
摘要
申请公布号
US3171500(A)
申请公布日期
1965.03.02
申请号
US19620185036
申请日期
1962.04.04
申请人
ESCO CORPORATION
发明人
JR. EUGENE W. DILS,
分类号
A01B35/22;E02F9/28
主分类号
A01B35/22
代理机构
代理人
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地址
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