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发明名称
Coin controlled timer system
摘要
申请公布号
US3099341(A)
申请公布日期
1963.07.30
申请号
US19610093428
申请日期
1961.03.06
申请人
H. GREENWALD CO. INC.
发明人
GREENWALD HARRY
分类号
G07F15/12
主分类号
G07F15/12
代理机构
代理人
主权项
地址
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