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发明名称
Mud scoop
摘要
申请公布号
US2812596(A)
申请公布日期
1957.11.12
申请号
US19540419437
申请日期
1954.03.29
申请人
SCHOFIELD WALTER W
发明人
SCHOFIELD WALTER W.
分类号
E02F3/60
主分类号
E02F3/60
代理机构
代理人
主权项
地址
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