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发明名称
An improved coin-operated mechanism for use in combination with pre-payment gas meters
摘要
申请公布号
GB642762(A)
申请公布日期
1950.09.13
申请号
GB19470032100
申请日期
1947.12.05
申请人
ERIC SANDERS;JACK RANSOM
发明人
分类号
G07F15/02
主分类号
G07F15/02
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代理人
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