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发明名称
Operating mechanism for cover device
摘要
申请公布号
US2980034(A)
申请公布日期
1961.04.18
申请号
US19560612403
申请日期
1956.09.27
申请人
VINCENT HARTY RALPH
发明人
HARTY RALPH VINCENT
分类号
E01D15/02
主分类号
E01D15/02
代理机构
代理人
主权项
地址
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