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发明名称
WRENCH FOR OIL BARREL NUTS
摘要
申请公布号
CA511128(A)
申请公布日期
1955.03.22
申请号
CAD511128
申请日期
申请人
JOHN WARD
发明人
JOHN WARD
分类号
主分类号
代理机构
代理人
主权项
地址
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