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发明名称
CAR PRESENCE DETECTION SYSTEM
摘要
申请公布号
US3500039(A)
申请公布日期
1970.03.10
申请号
USD3500039
申请日期
1968.09.12
申请人
WESTINGHOUSE AIR BRAKE CO.
发明人
RALPH KORTYNA
分类号
B61L1/16;(IPC1-7):B61L1/16;G06F15/48;G06G7/76
主分类号
B61L1/16
代理机构
代理人
主权项
地址
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