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经营范围
发明名称
Counting device
摘要
申请公布号
US2623647(A)
申请公布日期
1952.12.30
申请号
US19480017011
申请日期
1948.03.25
申请人
ERICKSON ELMER L
发明人
ERICKSON ELMER L.
分类号
G06M11/00
主分类号
G06M11/00
代理机构
代理人
主权项
地址
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