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Y. M. Shoval Ltd. Patents |
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Assignee: Y. M. Shoval Ltd.
Address: Haifa, IL
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5025426 |
Reminder apparatus |
June 18, 1991 |
| Reminder apparatus to be carried by a user with a key constructed to remind the user as to the last operation in which the key was used with respect to a lock. The key includes an operation sensor which stores the time of the last key operation, and a display which, upon manual operation |
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