Elapsed time recorder
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United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
Aug 10, 1987
filing date -
Jan 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elapsed time recorder comprising an entrance recorder installed at the entrance for printing the entry time on a time card and simultaneously coding this entry time and printing the coded entry time on the time card, and an exit recorder installed at the exit for printing the exit time on the time card carried to the exit and simultaneously reading the coded entry time recorded on the time card, computing the elapsed time or the difference between the entry time and the exit time and printing the time difference on the time card.
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