发明名称 RECORDER WITH CIRCUIT LINE TAMPER INDICATING SYSTEM
摘要 <p>The present invention provides a recording system for recording operating parameter information on transportation equipment, such as large trucks and the like. The recording system includes at least one circuit line for operation thereof and is characterized by a sensor for sensing circuit line impedence changes indicative of unauthorized shut down of the system, as well as a recording member responsive to the sensor for visually recording any occurrences of these impedence changes on the recording medium.</p>
申请公布号 CA1193686(A) 申请公布日期 1985.09.17
申请号 CA19820402509 申请日期 1982.05.07
申请人 RUHL, HERMANN 发明人 RUHL, HERMANN
分类号 G01D9/28;(IPC1-7):G01D9/28 主分类号 G01D9/28
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