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发明名称
Coin-freed apparatus
摘要
申请公布号
US2672514(A)
申请公布日期
1954.03.16
申请号
US19500192928
申请日期
1950.10.30
申请人
AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED;HALL TELEPHONE ACCESSORIES LIMITED
发明人
TRAVERS WALTER A.;BUTLER HUGH ERNEST JAMES
分类号
G07F17/28
主分类号
G07F17/28
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代理人
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地址
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