| 摘要 |
A workman's time recorder has time storage devices each associated with the respective work member and arranged to be switched on and off by means of a stamp card each associated with an individual work member. Monitoring devices in the form of signal generating devices monitor orderly use of the stamp cards and serve to indicate and store faulty use of a stamp card. Blocking devices temporarily block a storage device upon faulty use of the respective stamp card and are automatically actuated to unblock the respective working time storage device for each new working time period. |
