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经营范围
发明名称
Manhole cover lifter
摘要
申请公布号
GB1031712(A)
申请公布日期
1966.06.02
申请号
GB19610025720
申请日期
1961.07.15
申请人
ARTHUR GLENN COLEMAN
发明人
分类号
B66F19/00
主分类号
B66F19/00
代理机构
代理人
主权项
地址
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