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发明名称
Counter device
摘要
申请公布号
US2988273(A)
申请公布日期
1961.06.13
申请号
US19570682433
申请日期
1957.09.06
申请人
WILLIAM FEDDICK EARL
发明人
FEDDICK EARL WILLIAM
分类号
A63D15/20
主分类号
A63D15/20
代理机构
代理人
主权项
地址
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