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发明名称
Mechanical counter
摘要
申请公布号
US2256581(A)
申请公布日期
1941.09.23
申请号
US19400339757
申请日期
1940.06.10
申请人
ROBERTS LLOYD S
发明人
ROBERTS LLOYD S.
分类号
G06M1/04
主分类号
G06M1/04
代理机构
代理人
主权项
地址
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