发明名称 Transportation equipment recorder with time accuracy
摘要 The present invention provides a system for recording operating condition information regarding transportation equipment and for determining the accuracy of recorded duration of the operating conditions. The system includes a first recording member for recording the operating condition information and a second recording member for recording time information in a predetermined pattern with accurate duration recording of the operating condition information and where such predetermined pattern is broken with inaccurate duration recording of the operating condition information.
申请公布号 US4656488(A) 申请公布日期 1987.04.07
申请号 US19850779038 申请日期 1985.09.23
申请人 RUHL, HERMANN 发明人 RUHL, HERMANN
分类号 G01P1/12;G07C5/12;(IPC1-7):G01D15/00 主分类号 G01P1/12
代理机构 代理人
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