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发明名称
Signalling system for taxi cabs
摘要
申请公布号
US2814028(A)
申请公布日期
1957.11.19
申请号
US19550482819
申请日期
1955.01.19
申请人
YELLOW CAB COMPANY OF PHILADELPHIA
发明人
HAMILTON WILL H.
分类号
G07B13/04
主分类号
G07B13/04
代理机构
代理人
主权项
地址
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