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发明名称
Improvements in or relating to pre-payment mechanism for gas and the like meters
摘要
申请公布号
GB516956(A)
申请公布日期
1940.01.16
申请号
GB19380028560
申请日期
1938.10.01
申请人
JAMES HENRY WILSON;GEORGE WILSON GAS METERS LIMITED
发明人
分类号
G07F15/00
主分类号
G07F15/00
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