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发明名称
Parking meter
摘要
申请公布号
US2252035(A)
申请公布日期
1941.08.12
申请号
US19370142551
申请日期
1937.05.14
申请人
NATIONAL PARK-O-GRAF CORPORATION
发明人
ROCKOLA DAVID C.
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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