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发明名称
Parking meter
摘要
申请公布号
US2147520(A)
申请公布日期
1939.02.14
申请号
US19370119698
申请日期
1937.01.08
申请人
JOHN W. BULLOCK
发明人
BULLOCK JOHN W.;CLEMENTZ CLARENCE W.
分类号
G07F17/24
主分类号
G07F17/24
代理机构
代理人
主权项
地址
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